Chapter 13 Why do we fall ill? Assertation & Reasoning Questions Class 9th Science

1) Assertion-cell plays vital role in the body.

Reason-cell is the basic unit of body structure.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

2) Assertion-cell plays vital role in the body.

Reason-cell is the basic unit of wall making.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans -Assertion is true but Reason is false.

3) Assertion- cell plays vital role in bacteria.

Reason-cell is the basic unit of wall making.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

4) Assertion-cell plays vital role in the body.

 Reason- cells are made up of a variety of chemicals substances -proteins, carbohydrates, fats or lipids.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

5) Assertion-Food is necessary for cell and tissue functions.

Reason-Food give energy in the form of proteins, vitamins, minerals to the cell and tissue functions.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans -Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

6) Assertion-Food is necessary for cell and tissue functions.

Reason-cell is always depending on environment to grow.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

7) Assertion-Food is necessary for cell and tissue functions.

Reason-cell is the basic unit of wall making.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans -Assertion is true but Reason is false.

8) Assertion-Open drainage water is responsible for causing health issues.

Reason- Open drainage water is clean water which responsible for health issues.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans -Assertion is true but Reason is false.

9) Assertion-Open drainage water is responsible for causing health issues.

Reason- All wastewater get collects into the drainage water.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans -Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

10) Assertion- Open drainage water is responsible for good health.

Reason- Open drainage water is clean water which responsible for health issues.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans -Both Assertion and Reason are false.

11) Assertion-Open drainage water is clean water which responsible for health issues.

Reason- bacteria and microorganisms are easily grow in clean drainage water.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

12) Assertion-water treatment is very necessary.

Reason- to avoid water pollution we need to do water treatment.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

13) Assertion-water treatment is very necessary.

Reason- to avoid water pollution we must store water in tankers.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

14) Assertion-water treatment is very necessary.

Reason- to protect water source we need to treat and store water safely.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

15) Assertion-we should wash hands before preparing and taking food.

Reason- our hands are very uncleaned hence it is very necessary to wash them.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

16) Assertion-we should wash hands before preparing and taking food.

Reason- to protect ourselves from all infection we need to wash hands.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

17) Assertion-we should clean vegetables and fruits before use them.

Reason- to protect ourselves from all infection we need to wash hands.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

18) Assertion-we should clean vegetables and fruits before use them.

Reason- to protect ourselves from all infection we need to wash our hairs daily.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

19) Assertion-we should clean hair and legs before going to playground.

Reason- to protect ourselves from all infection we need to wash our hairs and legs daily.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

20) Assertion-Tuberculosis is the acute disease.

Reason- acute disease have very drastic long-term effect on people health

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Both Assertion and Reason are false.

21) Assertion-to protect ourselves from all infection we need to wash our hairs and legs daily.

Reason- we should clean hair and legs before going to playground.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

22) Assertion-Tuberculosis is the acute disease.

Reason- acute disease have very drastic long-term effect on plant health.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

23) Assertion-Tuberculosis is the chronic disease.

Reason- chronic disease have very drastic long term effects on people’s health.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

24) Assertion-acute disease have very drastic long term effect on plant health.

Reason-Tuberculosis is the acute disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

25) Assertion-chronic disease have very drastic long term effects on people’s health.

Reason-Tuberculosis is the chronic disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

26) Assertion-Turner syndrome is genetic disorder.

Reason- genetic disorder mainly happened due to mutation.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

27) Assertion-Turner syndrome is genetic disorder.

Reason- genetic disorder mainly happened due to decreasing quantity of white blood cells.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

28) Assertion-Turner syndrome is genetic disorder.

Reason- genetic disorder mainly happened due to decreasing quantity of red blood cells.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

29) Assertion- COVID-19 is the infectious disease.

Reason- infectious agents are responsible for spreading infectious disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

30) Assertion-COVID-19 is the infectious disease.

Reason- corona virus is the infectious agent which spread through air or any kind of contact.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

31) Assertion-AIDS, influenza, cold cough is the infectious disease.

Reason- acute diseases are long term disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

32) Assertion-AIDS, influenza, cold cough is the infectious disease.

Reason-chronic diseases are long term disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

33) Assertion-AIDS, influenza, cold cough is non-infectious disease.

Reason- acute diseases are long term disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans -Both Assertion and Reason are false.

34) Assertion-AIDS, influenza, cold cough is the infectious disease.

Reason- virus is the infectious agent which is responsible for AIDS, influenza, cold and cough.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

35) Assertion-Typhoid fever, cholera, tuberculosis is the infectious disease.

Reason- chronic diseases are long term disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

36) Assertion-Typhoid fever, cholera, tuberculosis is the infectious disease.

Reason-acute diseases are long term disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

37) Assertion-Typhoid fever, cholera, tuberculosis is the infectious disease.

Reason-Typhoid fever, cholera, tuberculosis is spread due to plasmodium.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

38) Assertion- Typhoid fever, cholera, tuberculosis is the Non-infectious disease.

Reason-Typhoid fever, cholera, tuberculosis is spread due to plasmodium.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

39) Assertion-Typhoid fever, cholera, tuberculosis is the infectious disease.

Reason- bacteria is responsible for Typhoid fever, cholera, tuberculosis.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

40) Assertion-bacteria is responsible for Typhoid fever, cholera, tuberculosis.

Reason- Typhoid fever, cholera, tuberculosis is the infectious disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

41) Assertion-Syphilis is the infectious disease.

Reason- syphilis is passed from one generation to next generation that the reason it called infectious disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

42) Assertion-Syphilis is the infectious disease.

Reason- syphilis is passed from one generation to next generation that the reason it called non- infectious disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

43) Assertion-Syphilis is the infectious disease.

Reason-Syphilis is passed from one to other person by sexual contact hence it called non-infectious disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

44) Assertion-Syphilis is the infectious disease.

Reason-Syphilis is passed from one to other person by sexual contact hence it called infectious disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

45) Assertion-Syphilis is the non-infectious disease.

Reason-Syphilis is passed from one to other person by sexual contact hence it called non-infectious disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

46) Assertion-Mosquitoes feed on many warm-blooded animals.

Reason-Reproduction of mosquitoes are depending on other microorganisms which are warm blooded organisms.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans -Assertion is true but Reason is false.

47) Assertion-Mosquitoes feed on many warm-blooded animals.

Reason-female mosquitoes lay eggs on the male body surface.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

48) Assertion-Mosquitoes feed on many cold-blooded animals.

Reason-female mosquitoes lay eggs on the male body surface.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

49) Assertion-Mosquitoes feed on many cold-blooded animals.

Reason-Reproduction of mosquitoes are depending on other microorganisms which are warm blooded organisms.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

50) Assertion-Reproduction of mosquitoes are depending on other microorganisms which are warm blooded organisms.

Reason- Mosquitoes feed on many cold-blooded animals.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

51) Assertion-Whenever we suffer from disease that time, we generally take medicine.

Reason- medicine is the haunted thing which responsible for disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

52) Assertion-Whenever we suffer from disease that time, we generally take medicine.

Reason- Medicines are generally differentiated in two parts Ayurveda and chemical based.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

53) Assertion-Medicines are generally differentiated in two parts Ayurveda and chemical based.

Reason- Whenever we suffer from disease that time, we generally take medicine.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

54) Assertion-Medicines are generally made up of chemicals to kill disease.

Reason- drugs are made up of many harmful chemicals.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

55) Assertion-drugs are made up of many harmful chemicals.

Reason-Medicines are generally made up of chemicals to kill disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

56) Assertion-Medicinal drugs are made up of many chemicals.

Reason- Diseases are cause due to Biochemical happens in the body by microorganisms and those get killed by medicinal drugs.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

57) Assertion-Diseases are cause due to Biochemical happens in the body by microorganisms And those get killed by medicinal drugs.

Reason-Medicinal drugs are made up of many chemicals.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

58) Assertion-protozoa is a microorganism which responsible for malaria disease.

Reason- protozoa does not get contacted with the human body directly.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

59) Assertion-protozoa does not get contacted with the human body directly.

Reason- protozoa is a microorganism which responsible for malaria disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

60) Assertion-Mosquitoes are not responsible for spreading malaria.

Reasons-protozoa does not get contacted with the human body directly.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

61) Assertion-Mosquitoes are not responsible for spreading malaria.

Reason- protozoa is a microorganism which responsible for malaria disease.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

62) Assertion-Mosquitoes are not responsible for spreading malaria.

Reason- protozoa are presents inside the gut of malaria.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

63) Assertion-protozoa are presents inside the gut of malaria.

Reason-Mosquitoes are not responsible for spreading malaria.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

64) Assertion-Antiviral medicines are harder than antibacterial medicines.

Reason- viruses have own biochemical mechanism where they enter into our cells that time they interrupt our cell body function.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

65) Assertion-viruses have own biochemical mechanism where they enter into our cells that time they interrupt our cell body function.

Reason-Antiviral medicines are harder than antibacterial medicines.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

66) Assertion-Antiviral medicines are harder than antibacterial medicines.

Reason- viruses are very dangerous than bacteria.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

67) Assertion-Antiviral medicines are harder than antibacterial medicines.

Reason-viruses carries harmful RNA.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

68) Assertion-Antiviral medicines are harder than antibacterial medicines.

Reason-viruses carries harmful DNA.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

69) Assertion-Anti-bacterial medicines are harder than anti-viral medicines.

Reason-viruses carries harmful DNA.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

70) Assertion-Anti-bacterial medicines are harder than anti-viral medicines.

Reason-viruses carries harmful DNA.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

71) Assertion-viruses carries harmful DNA.

Reason- virus is the microorganism have not specific body structure hence they carries DNA

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

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Chapter 12 Sound Assertation & Reasoning Questions Class 9th Science

1) Assertion-When any objects vibrates that time it produces sound.

Reason-Vibration means a kind of rapid to and from motion of an object.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

2) Assertion-When any objects vibrates that time it produces sound.

Reason-vibration is the process in which two objects strikes on each other.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are correct, and reason is the correct explanation for assertion.

3) Assertion-When any objects vibrates that time it produces sound.

Reason- vibrations of vocal cords creates sound

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans – Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

4) Assertion-vibrations of vocal cords creates sound

Reason-When any objects vibrates that time it produces sound.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

5) Assertion-When any objects vibrates that time it produces sound.

Reason- vibrations Of vocal cords leads painting in the throat.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans– Assertion is true but Reason is false.

6) Assertion-When any objects vibrates that time it produces acceleration.

Reason- vibrations Of vocal cords leads painting in the throat.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are false.

7) Assertion-stretched rubber bands always produces sound.

Reason-when we releases stretch rubber bands it get vibrates, results produces sound.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and reason is the correct explanation for assertion.

8) Assertion-stretched rubber bands always produces sound.

Reason- when we releases stretched rubber bands it get cut into two half’s.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

9) Assertion-Stretched rubber bands always produces sound.

Reason- vibrations create sound.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

10) Assertion-Steady rubber bands always produces sound.

Reason- when we releases stretched rubber bands it get cut into two half’s.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are false.

11) Assertion-when we releases stretched rubber bands it get cut into two half’s.

Reason- Steady rubber bands always produces sound.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are false.

12) Assertion-The matter or substances through which sound is transmitted is called medium.

Reason- the particles which present in the medium takes part to make sound wave by vibrating each other.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and reason is the correct explanation for assertion.

13) Assertion-The matter or substances through which sound is transmitted is called medium.

Reason-Solid, liquid, gas the medium through which sound get passed.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

14) Assertion-The matter or substances through which sound is transmitted is called medium.

Reason-Vacuum is the only medium through which sound get creates.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

15) Assertion-The matter or substances through which velocity is transmitted is called medium.

Reason- Vacuum is the only medium through which sound get creates.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-  Assertion and Reason are false.

16) Assertion-Vacuum is the only medium through which sound get creates.

Reason-The matter or substances through which velocity is transmitted is called medium.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are false.

17) Assertion- A wave is disturbance that moves through a medium when particles of the medium get neighbouring particles into motion.

Reason- Solid, liquid, gas the medium through which sound get passed.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and reason is the correct explanation for assertion.

18) Assertion- A wave is disturbance that moves through a medium when particles of the medium get neighbouring particles into motion.

Reason-The particles of medium move forward themselves with the help of hydrogen bonding.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

19) Assertion- A wave is disturbance that moves through a medium when particles of the medium get neighbouring particles into motion.

Reason-The particles of medium move forward themselves with the help of wander wall force.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

20) Assertion-sound waves are characterized by the motion of particles in the medium which we generally called mechanical wave.

Reason-A wave is disturbance that moves through a medium when particles of the medium get neighbouring particles into motion.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

21) Assertion- Sound waves are characterized by the motion of particles in the medium which we generally called mechanical wave.

Reason- Mechanical waves is the strongest wave through which sound get produces.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

22) Assertion-Bell do not produces sound inside the vaccum.

Reason- sound is produces only in air, water, and solid medium not in vaccum.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-

23) Assertion-Bell do not produces sound inside the vaccum.

Reason-Sound is generated by the process of vibration.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

24) Assertion-Bell do not produces sound inside the vaccum.

Reason-Sound is generated due to acceleration process.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are false.

25) Assertion-sound is produces only in air, water, and solid medium not in vaccum.

Reason-Bell do not produces sound inside the vaccum.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

26) Assertion—Bell do not produces sound inside the vaccum.

Reason -Sound is generated due to acceleration process.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

27) Assertion-Amplitude is represented by the letter A.

Reason- disturbance in the medium on another side of the mean value is called amplitude of the wave.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

28) Assertion- if we strikes by any object to a table we can easily hear a sound.

Reason- disturbance in the medium on another side of the mean value is called amplitude of the wave.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

29) Assertion-if we strikes by any object to a table we can easily hear a sound.

Reason-Amplitude is depends on force which we exert on object.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

30) Assertion-if we strikes by any object to a table we can easily hear a sound.

Reason- Amplitude is depend on the object through which we get sound.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

31) Assertion- if we strikes by any object to a table we can easily hear a sound.

Reason- Due to the less force exert on table, it can produces sound wave of less amplitude.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and reason is the correct explanation for assertion.

32) Assertion-loudspeaker sound can travel large distance.

Reason-Sound of loudspeaker have very high energy hence it travels large distance.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and reason is the correct explanation for assertion.

33) Assertion-loudspeaker sound can travel large distance.

Reason-Sound of loudspeaker is generally placed in open space hence that sound travels large distance.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

34) Assertion- loudspeaker sound can travel large distance.

Reason- loudspeaker has special function through which it generates sound.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

35) Assertion-‘ Loudness ‘ and intensity are not the same

Term.

Reason- ‘ Loudness ‘ is measure of response of ear to the sound.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

36) Assertion-‘ Loudness ‘ and intensity are the same terms.

Reason- ‘ Loudness ‘ is measure of response of ear to the sound.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are false.

37) Assertion-‘ Loudness ‘ is measure of response of ear to the sound.

Reason- ‘ Loudness ‘ and intensity are the same terms.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are false.

38) Assertion-‘Loudness ‘ and intensity are not the same

Term.

Reason-Intensity is measure of the response of ear to the sound.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

39) Assertion-travelling period of sound is more in water as compare to the ice.

Reason- generation of sound and travelling Of sound needs medium.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

40) Assertion-travelling period of sound is more in water as compare to the ice.

Reason- The speed of sound increases when we go from solid to gaseous state.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

41) Assertion-travelling period of sound is more in water as compare to the ice

Reason- The speed of sound decreases when we go from solid to gaseous state.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

42) Assertion-The auditoriums are generally covered with sound-absorbent materials like compressed fiber board, rough plaster

Reason-In an auditorium, excessive reverberation is highly undesirable hence to reduce reverberation. We use sound-absorbent material on roof.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and reason is the correct explanation for assertion.

43) Assertion-The auditoriums are generally covered with sound-absorbent materials like compressed fiber board, rough plaster

Reason- sound absorbent material absorbs sound from outer environment of the auditorium.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

44) Assertion-In an auditorium, excessive reverberation is highly undesirable hence to reduce reverberation. We use sound-absorbent material on roof.

Reason-The speed of sound increases when we go from solid to gaseous state.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

45) Assertion-Stethoscope is medical instrument used for listening to sound produced within body.

Reason- In stethoscopes the sound of patients heartbeat reaches the doctors ears by multiple reflection of sound.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are correct, and reason is the correct explanation for assertion.

46) Assertion-Stethoscope is medical instrument used for listening to sound produced within body.

Reason- the matter or substance through which sound is transmitted is called medium.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

47) Assertion -Stethoscope is medical instrument used for listening to sound produced within body.

Reason-Stethoscope is the instrument which shows us intestinal movement.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

48) Assertion-Stethoscope is medical instrument used for listening to sound produced within body.

Reason-Stethoscope is the instrument which shows us brain beating.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

49) Assertion-it is observed that some animals get disturbed before earthquakes.

Reason- Earthquakes produces low frequency infrasound before the main shock waves begins which possibly alert the animals.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and reason is the correct explanation for assertion.

50) Assertion-it is observed that some animals get disturbed before earthquakes.

Reason- Animals feel vibrations before earthquake get happens.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

51) Assertion-it is observed that some animals get disturbed before earthquakes.

Reason- Animals are born with 7sense from which they detects earthquake.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

52) Assertion-it is observed that some animals get disturbed before gun shot.

Reason- Animals are born with 7 sense from which they detects earthquake.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are false.

53) Assertion -Moths are easily detects bats hence they easily escape form them.

Reason- bats produces ultrasound Which easily detected by moths hence they sense that bats are nearby

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are correct, and reason is the correct explanation for assertion.

54) Assertion-Moths are easily detects bats hence they easily escape form them.

Reason- bats produces Infrasound which easily detected by moths hence they senses that bats are nearby.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

55) Assertion-Moths are easily detects bats hence they easily escape form them.

Reason- Bats produces some poisonous Chemicals which is very harmful for moths.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

56) Assertion-Bats produces some poisonous Chemicals which is very harmful for moths.

Reason- Animals are born with 7 sense from which they detects earthquake.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are false.

57) Assertion- Animals are born with 7 sense from which they detects earthquake.

Reason- Bats produces some poisonous Chemicals which is very harmful for moths.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are false.

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Chapter 11 Work and Energy Assertation & Reasoning Questions Class 9th Science

1) Assertion-the unit of work is Nm

Reason-Nm is the SI unit of work where N is used for No. Of atoms.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans -Assertion is true but Reason is false.

2) Assertion-the unit of work is Nm

Reason-Nm is the SI unit of work where N is used for Newton.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

3) Assertion-the unit of work is Nm

Reason- Nm is the SI unit of work where m is used for meter.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

4) Assertion- The baby has exerted a force in the direction of displacement of the car that time work done by force which is under positive sign.

Reason-work is only happen when force get multiply by displacement.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans – Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

5) Assertion-The baby has exerted a force in the direction of displacement of the car that time work done by force which is under positive sign.

Reason-baby does her work by applying force.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans -Assertion is true but Reason is false.

6) Assertion-The baby has exerted a force in the direction of displacement of the car that time work done by force which is under positive sign.

Reason-work done is only happen in the presence of velocity.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans -Assertion is true but Reason is false.

7) Assertion-The baby has exerted a force in the direction of displacement of the car that time work done by force which is under positive sign.

Reason-work done is only happen in the opposite direction of displacement.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans – Assertion is true but Reason is false.

8) Assertion-The baby has exerted a force in  opposite direction of displacement of the car that time work done by force which is under positive sign.

Reason-baby does her work by applying force.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans – Assertion and Reason are false.

9) Assertion- The baby has exerted a force in the direction of displacement of the car that time work done by force which is under positive sign.

Reason-Baby does her work which exerts force in the direction of displacement of a car.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans – Assertion and Reason are correct, and reason is the correct explanation for assertion.

10) Assertion- The object which is in motion posses energy which we generally called kinetic energy.

Reason- Kinetic energy Is the only source of body.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

11) Assertion-The object which is in motion posses energy which we generally called kinetic energy.

Reason- A moving object always does work.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans -Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

12) Assertion-A moving object always does work.

Reason-The object which is in motion posses energy which we generally called kinetic energy.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans –Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

13) Assertion-The kinetic energy possessed by an object happened due to its motion.

Reason- The object which is in motion posses energy which we generally called kinetic energy.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans -Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

14) Assertion-The kinetic energy possessed by an object happened due to its motion.

Reason- kinetic energy generates from steady position of object which is generally situate on height.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans – Assertion is true but Reason is false.

15) Assertion-A lift an object through a certain height.

The object can how do work. It begins to fall when realised.

Reason-lifted object does work by using store energy called potential energy.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and reason is the correct explanation for assertion.

16) Assertion-A lift an object through a certain height.

The object can how do work. It begins to fall when realised.

Reason-lifted object does work by using store energy called motional energy.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

17) Assertion-A lift an object through a certain height.

The object can how do work. It begins to fall when realised.

Reason-lifted object does work by using motional energy called kinetic energy.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

18) Assertion-A lift an object through a certain height. The object can how do work. It begins start to float.

Reason- lifted object does work by using motional energy called kinetic energy.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are false.

19) Assertion-lifted object does work by using motional energy called kinetic energy.

Reason-A lift an object through a certain height. The object can how do work. It begins start to float.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are false.

20) Assertion-An object increases its energy when it goes upward.

Reason-when object goes upward that time it moves against gravity hence work get easily happens.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

21) Assertion-An object increases its energy when it goes upward.

Reason- When object goes upward that time it moves against gravity that is the reason energy of object getting increases.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and reason is the correct explanation for assertion.

22) Assertion-An object increases its energy when it goes upward.

Reason- the object is under motion shows its own energy Called kinetic energy.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

23) Assertion- An object increases its energy when it goes upward.

Reason- the object is under motion shows its own energy Called potential energy.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

24) Assertion- An object decreases its energy when it goes upward.

Reason- the object is under motion shows its own energy Called potential energy.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are false.

25) Assertion-the object is under motion shows its own energy Called potential energy.

Reason-An object decreases its energy when it goes upward.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are false.

26) Assertion-An object decreases its energy when it goes upward.

Reason- the object is under motion shows its own energy Called potential energy.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are false.

27) Assertion-lifted object have more potential energyWhere it releases from the height then potential energy get converted into the kinetic energy.

Reason-energy can neither be created nor be destroyed it can convert from one form to another form.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

28) Assertion-lifted object have more potential energy where it releases from the height then potential energy get converted into the kinetic energy.

Reason- lifted object shows negligible velocity.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

29) Assertion-lifted object have more potential energy where it releases from the height then potential energy get converted into the kinetic energy.

Reason- lifted object shows negligible kinetic energy.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans -Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

30) Assertion-lifted object have more potential energy

Where it releases from the height then potential energy get converted into the kinetic energy.

Reason- When lifted object releases that time potential energy get increases.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans -Assertion is true but Reason is false.

31) Assertion-lifted object have more potential energy Where it releases from the height then potential energy get converted into the kinetic energy.

Reason- When lifted object releases that time kinetic energy get increases.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans – Assertion is true but Reason is false.

32) Assertion-lifted objects are full of kinetic energy Where it releases from the height then potential energy get converted into the static energy.

Reason- When lifted object releases that time potential energy get increases.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans – Assertion and Reason are false.

33) Assertion- When lifted object releases that time potential energy get increases.

Reason -lifted objects are full of kinetic energy Where it releases from the height then potential energy get converted into the static energy.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are false.

34) Assertion-the definition of power is wok divided by time

Reason-the unit of power is watt.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans – Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

35) Assertion-the definition of power is wok divided by time

Reason-1 kilowatt means 1000 watts.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

36) Assertion-the definition of power is wok divided by time.

Reason- 1 kilo watt means 1000 kg.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans –  Assertion is true but Reason is false.

37) Assertion-the definition of power is wok divided by time.

Reason-1 kWh means 3.6 x 106 J .

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

38) Assertion-the definition of velocity is wok divided by time.

Reason-1 kWh means 0.36 x 106 J

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are false.

39) Assertion-1 kWh means 0.36 x 106 J

Reason-the definition of velocity is wok divided by time.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are false.

40) Assertion-1 kWh means 3600000 J.

Reason – 1kW   x  1 hour

              =1000  x 3600s

              =3600000 J

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans – Assertion and Reason are correct, and reason is the correct explanation for assertion.

41) Assertion-1 kWh means 3600000 J.

Reason – 1kW   x  1 hour

= 3600 kW x 1000s

              =3600000 J

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

42) Assertion-1 kWh means 3600000 J.

Reason-1kW   x  1 hour

             = 1000 x 60 minutes

             =60,000 J

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

43) Assertion-1 kWh means 3600000 J.

Reason- 60 watt means 0.06 kW

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

44) Assertion-60 watt means 0.06 kW

Reason- 1 kWh means 3600000 J.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans – Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

45) Assertion-1 kWh means 3600000 J.

Reason-power is equal to work done divided by time taken.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

46) Assertion-60 watt means 0.006 kW

Reason- 1 kWh means 36000000 J.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans – Assertion and Reason are false.

47) Assertion – one watt is one joule divided by second

Reason- 60 watt means 0.06 kW

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans – Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

48) Assertion-The formula of work done is equal to the force multiply by displacement.

Reason- work is only completed when we exert force on object where it displaces from one to another place

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-  Assertion and Reason are correct, and reason is the correct explanation for assertion.

49) Assertion- The formula of work done is equal to the force multiply by displacement.

Reason- Force is denoted by F.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans-Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

50) Assertion- The formula of work done is equal to the force multiply by displacement.

Reason-displacement is the object which denoted by using letter W.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

51) Assertion- The formula of work done is equal to the force multiply by velocity.

Reason- displacement of object denoted by using W.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Assertion and Reason are false.

Ans- Assertion and Reason are false.

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Chapter 10 Gravitation Assertation & Reasoning Questions Class 9th Science

1) Assertion-An object when thrown upward reaches a certain height and falls downward.

Reason-Object which thrown upward get float on the sky.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

2) Assertion-An object when thrown upward reaches a certain height and falls downward.

Reason- Object has their own energy to come down side.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

3) Assertion-An object when thrown upward reaches a certain height and float upward.

Reason-Due to gravitational energy an any object get float upward in the sky.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

4) Assertion-An object when thrown upward reaches a certain height and falls downward.

Reason-Due to gravitational energy an any object which present in the sky falls down the earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

5) Assertion-A stone travelling circular path with a velocity of constant magnitude.

Reason-stone has its own energy to move in the circular path.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

6) Assertion-A stone travelling circular path with a velocity of constant magnitude.

Reason-A stone which travelling in circular path which follows centripetal force.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

7) Assertion-A stone which tied with rope accelerate from the motion.

Reason- A stone which travelling in circular path which follows centripetal force.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

8) Assertion- The force that causes the acceleration and keeps the body moving along the circular path is acting towards the center. This force is called centripetal force

Reason-Centripetal force only acting on such an object which capable to move alone in the space.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

9) Assertion-The force that causes the acceleration and keeps the body moving along the circular path is acting towards the center. This force is called centripetal force.

Reason-Vander wall force only acting on such an object which capable to move alone in the space.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

10) Assertion-The force that causes the acceleration and keeps the body moving along the rectangle path is acting towards the center. This force is called centripetal force.

Reason-Vander wall force only acting on such an object which capable to move alone in the space.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

11) Assertion-In the absence of gravitational force any abject can be float on the sky.

Reason-gravitational force is the attractive force which exert from the core of earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

12) Assertion-In the absence of gravitational force any abject can be float on the sky.

Reason-gravitational force is the repulsive force which exert from the sun to a object.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

13) Assertion-In the absence of gravitational force any abject can be float on the sky.

Reason- An object when thrown upward reaches a certain height and falls downward.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

14) Assertion-Moon is revolved around the earth due to the strong force

Reason-The force that causes the acceleration and keeps the body moving along the circular path is acting towards the center. This force is called centripetal force

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

15) Assertion-Moon is revolved around the earth due to the strong force

Reason-The force that causes the acceleration and keeps the body moving along the rectangular path is acting towards the center. This force is called centripetal force

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

16) Assertion-Moon is revolved around the earth due to the strong force

Reason-The force that causes the acceleration and keeps the body moving along the rectangular path is acting towards the center. This force is called rectangular force

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

17) Assertion-Sun is revolved around the earth due to the strong force

Reason-The force that causes the acceleration and keeps the body moving along the rectangular path is acting towards the center. This force is called rectangular force

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

18) Assertion-Moon is revolving around the earth

Reason-According to second law of motion the force of acceleration is inversely proportional to the mass of an object. So, the mass of moon is negligible.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

19) Assertion-Moon is revolving around the earth.

Reason-According to second law of motion the force of acceleration is inversely proportional to the mass of an object. So, the mass of moon is more than earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

20) Assertion-Moon is revolving around the earth.

Reason-According to second law of motion the force of acceleration is directly proportional to the mass of an object. So, the mass of moon is more than earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

21) Assertion-Moon is revolving around the mars

Reason-According to second law of motion the force of acceleration is directly proportional to the mass of an object. So, the mass of moon is more than earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are false.

22) Assertion- SI unit of gravitation is N m2 kg-2  

Reason- Gravitation is the attractive force present on the earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

23) Assertion- SI unit of gravitation is N m2 kg-2  

Reason- Gravitation has no SI unit.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-assertion is true, but Reason is false.

24) Assertion-A force which binds us to the earth is known as gravitational force.

Reason-Gravitational force is the attractive force exerts from earth core to every object which present on earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

25) Assertion-A force which binds us to the earth is known as gravitational force.

Reason-Gravitational force is the repulsive force exerts from earth core to every object which present on earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

26) Assertion-A force which binds us to the earth is known as interstitial force.

Reason-Gravitational force is the repulsive force exerts from earth core to every object which present on earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

27) Assertion-the object fall towards the earth under gravitational force alone we say that the abject are in free fall

Reason- the object which experiences free fall cannot have its own energy.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

28) Assertion-the object fall towards the earth under gravitational force alone we say that the abject are in free fall

Reason- the object which experiences free fall have its own energy to fall on ground.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

29) Assertion-the object go upward from the earth under gravitational force alone we say that the abject are in free fall

Reason- The object which experiences free fall have its own energy to fall on ground.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

30) Assertion-The object which experiences free fall have its own energy to fall on ground.

Reason-the object goes upward from the earth under the gravitational force alone we say that the abject are in free fall

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

31) Assertion-The earth is not perfect sphere.

Reason-Earth is rectangle in shape

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

32) Assertion- relation of inertia and mass is when inertia is greater the mass of object also greater.

Reason- inertia is directly proportional to the mass of abject.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

33) Assertion-The formula of pressure is equal to thrust divided by area.

Reason-SI unit of pressure is N/m2

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

34) Assertion-Pressure exerted in any confined mass of fluid is transmitted undiminished in all directions.

Reason-SI unit of pressure is N/m2

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

35) Assertion-Pressure exerted in any confined mass of fluid is transmitted undiminished in all directions.

Reason-SI unit of pressure is N/Scm2

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

36) Assertion-Temperature exerted in any confined mass of fluid is transmitted undiminished in all directions.

Reason-SI unit of pressure is N/Scm2

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

37) Assertion-SI unit of pressure is N/Scm2

Reason-Temperature exerted in any confined mass of fluid is transmitted undiminished in all directions.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

38) Assertion-The upward force exerted by the water on the bottle is known as upthrust or buoyant force.

Reason- The magnitude of the buoyant force is depending on the density of the fluid.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

39) Assertion-The downward force exerted by the water on the bottle is known as upthrust or buoyant force.

Reason- The magnitude of the buoyant force is depending on the viscosity of the fluid.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

40) Assertion-The upward force exerted by the water on the bottle is known as upthrust or buoyant force.

Reason- The magnitude of the buoyant force is depending on the viscosity of the fluid.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

41) Assertion-When body is immersed fully or partially in fluid, it experiences an upward force that is equal to the weight of the fluid displaced by it.

Reason-The magnitude of the buoyant force is depending on the density of the fluid.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

42) Assertion-When body is immersed fully or partially in fluid, it experiences an upward force that is equal to the weight of the fluid displaced by it.

Reason-The magnitude of the buoyant force is depending on the viscosity of the fluid.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

43) Assertion-When body is immersed fully or partially in fluid, it experiences adownward force that is equal to the weight of the fluid displaced by it.

Reason-The magnitude of the buoyant force is depending on the viscosity of the fluid.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

44) Assertion-The unit of density is kilogram per meter cube.

Reason-The density of a substance is defined as mass of a unit volume.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

45) Assertion-The unit of density is kg m-3.

Reason-The density of a substance is defined as mass of a unit volume.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

46) Assertion-The unit of density is kilogram per meter cube.

Reason-The viscosity of a substance is defined as mass of a unit volume.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

47) Assertion-The unit of density is kilogram per meter cube.

Reason-The density of a substance is defined as mass of a unit kilogram.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

48) Assertion-The unit of density is kilogram per meter cube.

Reason-The density of a substance is defined as pressure of a unit volume.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

49) Assertion-The unit of density is kilogram per meter square.

Reason-The density of a substance is defined as pressure of a unit volume.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

50) Assertion- The formula of relative density equals to density of substances divided by density of water.

Reason-Relative density term is depending on the relation of density and volume.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

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Chapter 9 Force and Laws of Motion Assertation & Reasoning Questions Class 9th Science

1) Assertion-The unbalanced force acting on an object which brings it in motion.

Reason-force is nothing but the energy present inside the body.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

2) Assertion-The unbalanced force acting on an object which brings it in motion.

Reason-force is nothing but the power present inside the body.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

3) Assertion-force is nothing but the power present inside the body.

Reason-The unbalanced force acting on an object which brings it in speed.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

4) Assertion-The unbalanced velocity acting on an object which brings it in speed.

Reason-force is nothing but the power present inside the body.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

5) Assertion-A small children pushes heavy box, but it cannot move easily.

Reason-when box is heavy it cannot move from one place to another place.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

6) Assertion-A small children push heavy box, but it cannot move easily.

Reason-when the friction force balances pushing force at that time heavy box cannot move by small force.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

7) Assertion-when the friction force balances pushing force at that time heavy box cannot move by small force.

Reason-A small children push heavy box, but it cannot move easily.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

8) Assertion-An object moves with a uniform velocity when the forces acting on the object are balanced and there is no net external force on it.

Reason- External force on velocity is always negative.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

9) Assertion-An object moves with a uniform velocity when the forces acting on the object are balanced and there is no net external force on it.

Reason- External force on velocity is always negligible.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

10) Assertion-An object moves with a uniform velocity when the forces acting on the object are balanced and there is no net external force on it.

Reason- Force of object is always zero.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

11) Assertion-An object moves with a uniform velocity when the forces acting on the object are balanced and there is no net external force on it.

Reason- The motion is always in uniform manner.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

12) Assertion-An object moves with a uniform velocity when the forces acting on the object are balanced and there is the more external force present.

Reason- The motion is always in uniform manner.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

13) Assertion-The motion is always in uniform manner.

Reason-An object moves with a uniform velocity when the forces acting on the object are balanced and there is the more external force present.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

14) Assertion-Practically there is difficulty seen for achieving zero unbalanced force.

Reason-Zero unbalanced force is never achieved in universe.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

15) Assertion-Practically there is difficulty seen for achieving zero unbalanced force.

Reason-The presence of frictional force acting opposite to the direction of motion hence unbalanced force is difficult.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

16) Assertion-The presence of frictional force acting opposite to the direction of motion hence unbalanced force is difficult.

Reason-Practically there is difficulty seen for achieving zero unbalanced force.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

17) Assertion- Practically there is difficulty seen for achieving zero unbalanced force.

Reason- Zero unbalanced force is only achieved in vacuum chamber.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

18) Assertion- Practically there is difficulty seen for achieving zero balanced force.

Reason- Zero unbalanced force is only achieved in vacuum chamber.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

19) Assertion-Zero unbalanced force is only achieved in vacuum chamber.

Reason-Practically there is difficulty seen for achieving zero balanced force.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

20) Assertion-Zero balanced force is only achieved in vacuum chamber.

Reason-Practically there is difficulty seen for achieving zero balanced force.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

21) Assertion- Safety belts are protecting us from accidents.

Reason- safety belts should wear on head.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

22) Assertion- Safety belts are protecting us from accidents.

Reason- safety belts should wear around our waist.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

23) Assertion- Safety belts are protecting us from accidents.

Reason- safety belts should wear around on wrist.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Assertion is true but Reason is false.

24) Assertion-Safety belts are protecting us from accidents.

Reason-the safety belts exert a force on our body to make the forward motion slower.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

25) Assertion-Safety belts are protecting us from accidents.

Reason-the safety belts exert a force on our body to make the upward motion slower.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

26) Assertion-Safety belts are protecting us from accidents.

Reason-The safety belts exert a force on our body to make the downward motion slower.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

27) Assertion-Safety belts are protecting us from the mosquitoes.

Reason-The safety belts exert a force on our body to make the downward motion slower.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

28) Assertion-The safety belts exert a force on our body to make the downward motion slower.

Reason-Safety belts are protecting us from the mosquitoes.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

29) Assertion-The safety belts exert a force on our body to make the downward motion slower.

Reason-Safety belts are protecting us from the momentum.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

30) Assertion-We feel fall backward due to sudden start bus.

Reason-Our body opposes motion of bus due to inertia.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

31) Assertion- Our body opposes motion of bus due to inertia.

Reason-We feel fall backward due to sudden start bus.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

32) Assertion-We feel fall backward due to sudden start bus.

Reason-safety belts should wear around on wrist.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

33) Assertion- A force that is just enough to cause a small cart to pick up a large velocity will produce a negligible change in the motion of train.

Reason-when we saw the comparison between cart and train then we get to know that train has lesser tendency to change its state of motion.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

34) Assertion- A force that is just enough to cause a small cart to pick up a large velocity will produce a negligible change in the motion of train.

Reason-when we saw the comparison between cart and train then we get to know that cart has lesser tendency to change its state of motion.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

35) Assertion- A motion that is just enough to cause a small cart to pick up a large velocity will produce a negligible change in the speed of train.

Reason-when we saw the comparison between cart and train then we get to know that train has lesser tendency to change its state of motion.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are false.

36) Assertion-when we saw the comparison between cart and train then we get to know that train has lesser tendency to change its state of motion.

Reason-A motion that is just enough to cause a small cart to pick up a large velocity will produce a negligible change in the speed of train.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are false.

37) Assertion-The inertia of the object is always measured by the mass.

Reason-SI unit of the mass is Kg.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

38) Assertion-The inertia of the object is always measured by the mass.

Reason-SI unit of the mass is cm.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

39) Assertion-The inertia of the object is always measured by the mass.

Reason-SI unit of the mass is cmS-1 

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

40) Assertion-The inertia of the object is always measured by newton.

Reason-SI unit of the mass is cm.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

41) Assertion-SI unit of the mass is cm.

Reason-The inertia of the object is always measured by newton.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

42) Assertion-Momentum have both the parameters to measure like direction and velocity.

Reason-The SI unit of momentum is kgmS-1    

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

43) Assertion-The acceleration of ball is decreased when any person catches fast moving ball results it hurts palm of the catcher.

Reason-when high speed ball strike on palm that time the rate of momentum of the ball is very large.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

44) Assertion-The acceleration of ball is decreased when any person catches fast moving ball results it hurts palm of the catcher.

Reason-the momentum of fast ball is very high.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

45) Assertion-The acceleration of ball is decreased when any person catches fast moving ball results it hurts palm of the catcher.

Reason-the momentum of fast ball is very less.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

46) Assertion-The acceleration of ball is increased when any person catches fast moving ball results it hurts palm of the catcher.

Reason-the momentum of fast ball is very less.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

47) Assertion-The acceleration of ball is increased when any person catches fast moving ball results it hurts palm of the catcher.

Reason-the momentum of fast ball is very high.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

48) Assertion-the momentum of fast ball is very high.

Reason-The acceleration of ball is increased when any person catches fast moving ball results it hurts palm of the catcher.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

49) Assertion-As the sailor jumps to forward direction then the boat get moves to backward direction.

Reason-Momentum of boat is slow when any person try to jump.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

50) Assertion-As the sailor jumps to forward direction then the boat get moves to backward direction.

Reason-Momentum of boat is high when any person try to jump.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

51) Assertion-When two objects’ colloids each otherthen they change their previous places.

Reason-during collusion objects get destroyed themselves.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

52) Assertion-When two objects’ colloids each other then they change their previous places.

Reason-During collusion of objects, momentum will be high due to that reason they changes their own position.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

53) Assertion-When two objects’ colloids each other then they change their previous places.

Reason-During transcription of objects, momentum will be high due to that reason they changes their own position.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

54) Assertion-When two objects’ colloids each other then they change their previous places.

Reason-During collusion of objects, momentum will be lesser due to that reason they changes their own position.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

55) Assertion-When two objects’ colloids each other than they do not changes its own position.

Reason-During collusion of objects, momentum will be lesser due to that reason they change their own position.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

56) Assertion-During collusion of objects, momentum will be lesser due to that reason they change their own position.

Reason-When two objects’ colloids each other than they do not changes its own position

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

57) Assertion-to every action there is an equal and opposite reaction which happens in two different bodies.

Reason-collusion happen in two different objects with their different energies.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

58) Assertion-to every action there is an equal and opposite reaction which happens in two different bodies.

Reason-collusion happen in two different objects with their same energies.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

59) Assertion-to every action there is an equal and opposite reaction which happens in two different bodies.

Reason-in an isolated system the total momentum remains conserved.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

60) Assertion-in an isolated system the total momentum remains conserved.

Reason-to every action there is an equal and opposite reaction which happens in two different bodies.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

61) Assertion-in an open system the total momentum remains conserved.

Reason-to every action there is an equal and opposite reaction which happens in two different bodies.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

62) Assertion-to every action there is an equal and opposite reaction which happens in two different bodies.

Reason-force is nothing but friction which always opposes motion of objects.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

63) Assertion-force is nothing but friction which always opposes motion of objects.

Reason-to every action there is an equal and opposite reaction which happens in two different bodies.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

64) Assertion-thermos flasks helps us to maintain tea temperature.

Reason-in an isolated system the total energy or heat remains conserved.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

65) Assertion-thermos flasks helps us to maintain tea temperature.

Reason-in an open system the total energy or heat remains conserved.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

66) Assertion-in an isolated system the total energy or heat remains conserved.

Reason-thermos flasks help us to maintain tea temperature.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

67) Assertion-thermos flasks help us to maintain tea temperature.

Reason-thermos flasks is made up of aluminum which helps to maintain tea temperature.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

68) Assertion-thermos flasks help us to maintain tea temperature.

Reason-thermos flasks is made up of copper which helps to maintain tea temperature.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

69) Assertion-Aluminum which present in the thermos gives extra hotness to tea.

Reason-in an isolated system the total momentum remains conserved.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

70) Assertion-Aluminum which present in the thermos gives extra hotness to tea.

Reason-energy can easily create and it get easily destroyed by human being.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

71) Assertion-in an isolated system the total momentum remains conserved.

Reason-energy can neither be created nor be destroyed.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

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Chapter 8 Motion Assertation & Reasoning Questions Class 9th Science

1) Assertion- Atoms, molecule, planets, stars, and galaxies are all lived in a motion.

Reason- every object has its own energy.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

2) Assertion- Atoms, molecule, planets, stars, and galaxies are all lived in a motion.

Reason- every object shows motion by using its own energy.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

3) Assertion- Atoms, molecule, planets, stars, and galaxies are all lived in a motion.

Reason- Atoms, molecule, planets, stars get free energy from the universe to move inside the hollow

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

4) Assertion- Atoms, molecule, planets, stars, and galaxies are always found in the steady form

Reason- Atoms, molecule, planets, stars get free energy from the universe to move inside the hollow

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

5) Assertion- Atoms, molecule, planets, stars, and galaxies are always found in the steady form

Reason- Atoms are made up of lots of molecules

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are false.

6) Assertion-we all experiences sun rise and sunset every day.

Reason-sun is moving from west to east.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Assertion is true but Reason is false.

7) Assertion-we all experiences sun rise and sunset every day.

Reason-Mars is moving around the sun.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

8) Assertion-we all experiences sun rise and sunset every day.

Reason- Earth is moving around the sun.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

9) Assertion-we all experiences full moon day in every night.

Reason-sun is moving around the earth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- Both Assertion and Reason are false.

10) Assertion- we all know that every night on earth is known as dark moon day.

Reason-Sun is moving around the earth.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-d)Assertion and reason are false.

11) Assertion-Different kind of objects take unequal time to cover same distance.

Reason-Every object have their own speed.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans- Both assertion and reason are correct, and reason is not the correct explanation for reason.

12) Assertion-Every object has their own speed.

Reason-Different kind of objects take unequal time to cover same distance.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

13) Assertion-Different kind of objects take unequal time to cover same distance.

Reason-Every object have not their own energy to move.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans- Assertion is true and reason is false.

14) Assertion-Different kind of objects take unequal time to cover same distance.

Reason-objects have unequal energy hence they travelled with the different speed.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans- Both assertion and reason are correct, and reason is the correct explanation for assertion

15) Assertion-Different kind of objects take unequal time to cover same distance.

Reason-Every living object have their own energy to move.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

16) Assertion-Different kind of living objects take unequal time to cover same distance.

Reason-Every object have not their own energy to move.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion is true and reason is false.

17) Assertion- All types of objects take same time to travel from one place to another place

Reason- the objects which are under the motion shows natural process.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

18) Assertion- All types of living objects take same time to travel from one place to another place

Reason- the objects which are under the motion shows natural process.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

19) Assertion- the SI unit of the speed is Cms-1

Reason-Cms-1means centimeter inverse second.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion is true and reason is false.

20) Assertion- the SI unit of the speed is Sms-1

Reason-Cms-1means centimeter inverse second.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

21) Assertion-The SI unit of the speed is Sms-1

Reason-SI unit gives us standard information’s

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

22) Assertion- To specify the speed of an object we required its magnitude.

Reason-magnitude is the scalar quantity.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion is true and reason is false.

23) Assertion- To specify the speed of an object we required its magnitude.

Reason-magnitude is the vector quantity.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

24) Assertion- To specify the speed of an object we required its formula.

Reason-magnitude is the vector-scalar quantity.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

25) Assertion- Magnitude is the vector-scalar quantity.

Reason-To specify the speed of an object we required its formula.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

26) Assertion-To specify the speed of an object we required its magnitude.

Reason- SI unit gives us all standard information I in the form of specific magnitude.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans- Assertion and reason are false.

27) Assertion-To specify the speed of an object we required motion.

Reason-SI unit gives us all standard information I in the form of specific motion.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

28) Assertion-An average speed values gives us information of average specific speed.

Reason-speed term is always related with the time and motion.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans- Assertion and reason are false.

29) Assertion- Speed is always equal to the distance divided by time.

Reason- we easily detect the speed of object by knowing two terms distance travelled and time.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans- Both assertion and reason are correct, and reason is not the correct explanation for reason.

30) Assertion- we easily detect the speed of object by knowing two terms distance travelled and time.

Reason- Speed is always equal to the distance divided by time.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

31) Assertion-Speed is always equal to the distance divided by time.

Reason-time is the special term which we daily used in our life which denoted by the t letter.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans- Both assertion and reason are correct, and reason is not the correct explanation for reason.

32) Assertion- total distance is equal to the speed multiply by time.

Reason- Speed is always equal to the distance divided by time.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

33) Assertion- The velocity of an object can be a uniform as well varied as per situations happens.

Reason- Velocity of object is determined by the average speed.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans- Assertion is true and reason is false.

34) Assertion- The velocity of an object can be a uniform as well varied as per situations happens.

Reason- Velocity of object is determined by the magnitude of the speed.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans- Assertion is true and reason is false.

35) Assertion- The velocity of an object can be a uniform as well varied as per situations happens.

Reason- Velocity can be changed by changing the object speed and direction of motion.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

36) Assertion-Velocity can be changed by changing the object speed and direction of motion.

Reason-The velocity of an object can be a uniform as well varied as per situations happens.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

37) Assertion-The velocity of an object can be always in uniform way.

Reason-velocity term is always related with the magnitude and motion.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

38) Assertion-The velocity of an object can be always in uniform way.

Reason- Velocity can be changed by changing the magnitude of time.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

39) Assertion- Average velocity of one object is 13.

Reason-initial velocity of object is 5.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion is true and reason is false.

40) Assertion- Average velocity of one object is 13.

Reason-when final velocity of an object is 21 that time, we get 13 as a average velocity.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion is true and reason is false.

41) Assertion- Average velocity of one object is 13.

Reason-when Initial velocity of objects is 5 and final velocity is 21 that time, we get 13 as a average velocity.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is the correct explanation for assertion

42) Assertion- Average velocity of one object is 10.

Reason-initial velocity of the object is 5 and final object is 15.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is the correct explanation for assertion

43) Assertion- Average velocity of one object is 10.

Reason-initial velocity of the object is 8 and final velocity is 15.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

ANS-Assertion is true and reason is false.

44) Assertion- Average velocity of one object is 10.

Reason-initial velocity of the object is 10 and final velocity is 15.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion is true and reason is false.

45) Assertion- Average velocity of one object is 10.

Reason-initial velocity of the object is 20 and final velocity is10 so, 20-10= 10 that is the reason 10 is the average velocity of object.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion is true and reason is false.

46) Assertion- during uniform motion of an object along a straight line the velocity remains constant with the time.

Reason-velocity is the scalar quantity.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion is true and reason is false.

47) Assertion-during uniform motion of an object along a straight line the velocity remains constant with the time.

Reason- Average velocity is always equals to displacement divided by total time taken.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

48) Assertion-Average velocity is always equals to displacement divided by total time taken.

Reason-during uniform motion of an object along a straight line the velocity remains constant with the time.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

49) Assertion-during uniform motion of an object along a straight line the velocity remains constant with the time.

Reason- Average velocity is always equals to displacement divided by speed.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion is true and reason is false.

50) Assertion-during uniform motion of an object along multiple lines the velocity remains constant with the time.

Reason- Average velocity is always equals to displacement divided by total time taken.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

51) Assertion-Average velocity is always equals to displacement divided by total time taken.

Reason-during uniform motion of an object along multiple lines the velocity remains constant with the time.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

52) Assertion- During uniform motion of an object along a straight line the velocity remains constant with the time.

Reason-The change in velocity of the object for any time interval is zero.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

53) Assertion-every object is always travelled with the uniform motion.

Reason-The object is travelled with the same straight line which generally shows uniform acceleration.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-d)Assertion and reason are false.

54) Assertion-the object is found under the uniform acceleration.

Reason- The object is travelled with the straight line and gradually its velocity increases or decreases by equal amount in equal intervals of time.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-a)Both assertion and reason are correct, and reason is the correct explanation for assertion

55) Assertion-The object is travelled with the straight line and gradually its velocity increases or decreases by equal amount in equal intervals of time.

Reason-the object is found under the uniform acceleration.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-a)Both assertion and reason are correct, and reason is the correct explanation for assertion

56) Assertion-the object is found under the negative acceleration.

Reason- The object is travelled with the straight line and its velocity increases or decreases by unequal amount in equal intervals of time.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false

57) Assertion-The object is travelled with the straight line and its velocity increases or decreases by unequal amount in equal intervals of time.

Reason-The object is found under the negative acceleration.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

58) Assertion- the object is found with the uniform acceleration.

Reason-acceleration is equal to the final velocity minus initial velocity divided by time.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

59) Assertion- a one car is moving with uniform acceleration.

Reason-acceleration is equal to the final velocity minus initial velocity divided by time.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

60) Assertion- a one car is moving with uniform acceleration.

Reason-a car is travelling with the straight line by increasing and decreasing velocity with the amount and in equal time interval.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is the correct explanation for assertion

61) Assertion- a one car is moving with uniform acceleration.

Reason–The object is travelled with the straight line and gradually its velocity increases or decreases by equal amount in equal intervals of time.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

62) Assertion- a one car is moving with non-uniform acceleration.

Reason-The object is travelled with the multiple line and its velocity increases or decreases by unequal amount in equal intervals of time.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

63) Assertion- a one car is moving with non-uniform acceleration.

Reason-a car is travelling with the straight line by increasing and decreasing velocity with the amount and in equal time interval.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion is true and reason is false.

64) Assertion-when an object moves in a circular path with the uniform speed the speed of motion is known as uniform circular motion.

Reason-earth is the example of uniform circular motion.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

65) Assertion-when an object moves in a circular path with the uniform speed the speed of motion is known as uniform circular motion.

Reason-Sun is the example of uniform circular motion.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion is true and reason is false.

66) Assertion-earth is the example of uniform circular motion.

Reason-when an object moves in a circular path with the uniform speed the speed of motion is known as uniform circular motion.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

67) Assertion- when an object moves in a circular path with the uniform speed the speed of motion is known as centripetal circular motion.

Reason-earth is the example of centripetal circular motion.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

68) Assertion-earth is the example of centripetal circular motion.

Reason-when an object moves in a circular path with the uniform speed the speed of motion is known as centripetal circular motion.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

69) Assertion- when an object moves in a circular path with the uniform speed the speed of motion is known as half centripetal circular motion.

Reason-earth is the example of centripetal circular motion.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

70) Assertion- when an object moves in a circular path with the uniform speed the speed of motion is known as half centripetal circular motion.

Reason-pendulum is the example of centripetal circular motion.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

71) Assertion- the object is always travelled with the uniform and non-uniform motion.

Reason-motion of the object is always changing when it changes its paths.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion is true and reason is false.

72) Assertion- the object is always travelled with the uniform and non-uniform motion.

Reason-motion of the object is always changing when it changes its speed

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is not the correct explanation for reason.

73) Assertion-the object is always travelled with the uniform and non-uniform motion.

Reason- the velocity of object is depending on the motion of abject whether it is uniform or not.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Both assertion and reason are correct, and reason is the correct explanation for assertion

74) Assertion-the object is always travelled with the uniform motion.

Reason-motion is the scalar term.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

75) Assertion-motion is the scalar term.

Reason-the object is always travelled with the uniform motion.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-Assertion and reason are false.

76) Assertion – motion and velocity are the scalar quantities.

Reason-velocity is always depending on motion of an object.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans- Assertion and reason are false.

77) Assertion-the velocity of object is depending on the motion of abject whether it is uniform or not.

Reason-the object is always travelled with the uniform and non-uniform motion.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans- Both assertion and reason are correct, and reason is the correct explanation for assertion

78) Assertion-the formula of velocity is P/t

Reason-the velocity of object is depending on the pendulum.

a) Both assertion and reason are correct, and reason is the correct explanation for assertion

b) Both assertion and reason are correct, and reason is not the correct explanation for reason.

c) Assertion is true and reason is false.

d) Assertion and reason are false.

Ans-d) Assertion and reason are false.

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Chapter 7 Diversity in Living Organisms Assertation & Reasoning Questions Class 9th Science

1) Assertion-Nucleus can be A basic characteristic of animal classification.

Reason-Nucleated cells have capacity to participate making multicellular organism because they can take up specialised function

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

2) Assertion-Nucleus can be A basic characteristic of animal classification.

Reason-nucleus is the only organelle present in the cell which shows animal characters

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-c) Assertion is true but Reason is false.

3) Assertion-Nucleus can be A basic characteristic of animal classification.

Reason- nucleus nucleatic material in the form of chromosomes.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

4) Assertion- Nucleus is the fluidy material found inside the cell

Reason- Nucleus generates ATP.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans–d) Both Assertion and Reason are false

5) Assertion-an amoeba and worms have a different body designs

Reason -cell of amoeba and their cell functioning is different than worm.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

6) Assertion- an amoeba and worms have a different body designs.

Reason- cell of amoeba and worm does same function.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- c) Assertion is true but Reason is false.

7) Assertion-an amoeba and worms have a same bodydesigns.

Reason- cell of amoeba and worm does same function.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-d) Both Assertion and Reason are false

8) Assertion- an amoeba and worms have a same body designs.

Reason- Amoeba is the lower animal which carries two nucleus inside the cell.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- d) Both Assertion and Reason are false

9) Assertion-Monera do not have definite nucleus.

Reason- Monera have only nuclear memmbrane.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans–c) Assertion is true but Reason is false.

10) Assertion- Monera do not have definite nucleus.

Reason-Monerais the lowest organism in which nucleatic material are floating inside the cell body

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

11) Assertion-Monera do not have definite nucleus.

Reason- Nucleus generates ATP which is energy source of cell.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-c) Assertion is true but Reason is false.

12) Assertion-Monera do not have definite nucleus.

Reason-Nucleus carries nucleic material inside the nucleus boundary.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion

13) Assertion-Monera have its own different type of large nucleus.

Reason- Nucleus generates ATP which is energy source of cell.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-d) Both Assertion and Reason are false

14) Assertion- Monera have its own different type of large nucleus.

Reason- Nucleus is generally found in the prokaryotic cell.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-d) Both Assertion and Reason are false

15) Assertion-Blue green algae follows autotrophic way to get food.

Reason-Blue green algae take sunlight from sun to follows autotrophic path.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

16) Assertion- Blue green algae follows autotrophic way to get food.

Reason- Blue green algae take carbon dioxide from environment to follows autotrophic path.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

17) Assertion- Blue green algae follows autotrophic way to get food.

Reason- Blue green algae take water from environment to follows autotrophic path.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

18) Assertion- Blue green algae follows autotrophic way to get food.

Reason-Blue green algae makes it’s own food in presence of sunlight and with the help of water and carbon dioxide

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- a)Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

19) Assertion- Blue green algae follows heterotrophic way to get food.

Reason- Blue green algae eats small fish which lived inside the water.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-d) Both Assertion and Reason are false

20) Assertion-Blue green algae, cynobacteria, mycoplasma are the examples of Kingdom Monera.

Reason-Blue green algae cynobacteria, mycoplasma, are autotrophic in nature

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- c) Assertion is true but Reason is false.

21) Assertion-Blue green algae, cynobacteria, mycoplasma are the examples of Kingdom Monera.

Reason- Blue green algae cynobacteria, mycoplasma, are heterotrophic in nature.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- c) Assertion is true but Reason is false.

22) Assertion-Blue green algae, cynobacteria, mycoplasma are the examples of Kingdom Monera.

Reason- Blue green algae cynobacteria, mycoplasma have not definite nucleus or cell organelle.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

23) Assertion-Blue green algae, cynobacteria, mycoplasma are the examples of Kingdom Protista.

Reason- Blue green algae cynobacteria, mycoplasma, are heterotrophic in nature.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-d) Both Assertion and Reason are false

24) Assertion-Blue green algae, cynobacteria, mycoplasma are the examples of Kingdom Plantea.

Reason- Reason-Blue green algae cynobacteria, mycoplasma, are heterotrophic in nature.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- d) Both Assertion and Reason are false

25) Assertion- Euglena have long flagellum on the body.

Reason- Euglena engulf it’s own food with the help of flagellum.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-c) Assertion is true but Reason is false.

26) Assertion- Euglena have long flagellum on the body.

Reason- Euglena floats on the water with the help of flagellum.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- c) Assertion is true but Reason is false.

27) Assertion- Euglena have long flagellum on the body.

Reason – Euglena have external outgrowth for locomotion called flagellum.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

28) Assertion-Euglena have long flagellum on the body.

Reason- Protista is one of the special kingdome in which most of the organisms are unicellular.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

29) Assertion-Euglena have long flagellum Inside the body.

Reason-Plantae is one of the special kingdome in which all organisms are unicellular.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- d) Both Assertion and Reason are false

30) Assertion- A riccia is the example of bryophyta.

Reason- Bryophyta is the amphibians of the plant kingdome.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

31) Assertion-A riccia is the example of bryophyta.

Reason- A pteridophyta is the amphibians of the plant kingdom.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-c) Assertion is true but Reason is false.

32) Assertion- Seeds are the result of sexual reproduction process in plants.

Reason- The plants have bear naked seeds and are usually perennial, evergreen, woody are comes under gymnosperm.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

33) Assertion-Seeds are the result of sexual reproduction process in plants.

Reason- The plants with well differentiated reproductive body parts which responsible to make seeds.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

34) Assertion-Seeds are the result of sexual reproduction process in plants.

Reason- Pteridophyta Is generally known as amphibians of the plant kingdome.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-c) Assertion is true but Reason is false.

35) Assertion- porifera organisms made up of holes.

Reason- porifera organisms are generally covered with the hard outer skeleton.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

36) Assertion-The coelenterata shows more body design diffentiation.

Reason-Coelenterata made up of two types of cells which present inner side of the body and outer side of the body.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

37) Assertion-The coelenterata shows more body design diffentiation.

Reason- Jelly fish and sea anemones are common examples of coelenterata.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

38) Assertion-The coelenterata shows same body design like plantae.

Reason- Jelly fish and sea anemones are common examples of gymnosperm hence they shows same body design like plantae.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- d) Both Assertion and Reason are false

39) Assertion-Some platyhelminthes are generally called flatworms.

Reason- The body of platyhelmithes is flattened dorsoventrally.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

40) Assertion-Some platyhelminthes are generally called flatworms.

Reason- Liverflukes is the example of platyhelmithes.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

41) Assertion- Some platyhelminthes are generally called flatworms.

Reason- Liverflukes is the example of coelenterata.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- c) Assertion is true but Reason is false.

42) Assertion-Some coelenterataare generally called flatworms.

Reason-Liverflukes is the example of coelenterata.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- d) Both Assertion and Reason are false

43) Assertion- Arthropods having open circular system present in the body.

Reason- Arthropods are generally seen with the jointed legs

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

44) Assertion- Arthropods having open circular system present in the body.

Reason-Prawns is the example of arthropods.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

45) Assertion- Blood of arthropods cannot flow with the well manner at the site of blood vessels.

Reason- Arthropods having open circular system present in the body.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

46) Assertion-Arthropods having open circular system present in the body.

Reason- Earthworm is the example of arthropods.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- c) Assertion is true but Reason is false.

47) Assertion-Blood of arthropods cannot flow with the well manner at the site of blood vessels.

Reason- Earthworm is the example of arthropods.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- c) Assertion is true but Reason is false.

48) Assertion-Aves are warm blooded organism.

Reason- Sparrow Is the example of aves.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans- b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

49) Assertion- Plantae and animalia are further divided into subdivisions on the basis of increasing complexity of body organisation.

Reason- Classification helps us in the exploring the diversity of life forms.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-a)Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

50) Assertion-Classification helps us in the exploring the diversity of life forms.

Reason- Plantae and animalia are further divided into subdivisions on the basis of increasing complexity of body organisation.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false

Ans-a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

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Chapter 6 Tissues Assertation & Reasoning Questions Class 9th Science

1) Assertion-Amoeba is the single cell animal in which single cell carries out all movement like intake of food, gaseous exchange and excretion.

Reason- Amoeba is not unicellular organism

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-c) Assertion is true but Reason is false.

2) Assertion –Amoeba is the single cell animal in which single cell carries

Reason- Amoeba is the single cell organism

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

3) Assertion – Amoeba is the single cell animal in which single cell carries

Reason- Amoeba is not multicellular organism hence it’s all body function does the single cell.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

4) Assertion-The supportive tissue is generally made up of dead cells.

Reason- Dead cells always present in liver.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-c) Assertion is true but Reason is false.

5) Assertion- Animal cell do not face demarcation of dividing and non-dividing regions.

Reason-The animal cell growth is more uniform.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

6) Assertion- Animal cell do not face demarcation of dividing and non-dividing regions.

Reason-The plant cell growth Is more uniform

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-c) Assertion is true but Reason is false.

7) Assertion-Animal cell do not face demarcation of dividing and non-dividing regions.

Reason- Animal cell consume more energy as compare plants.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

8) Assertion- is the multicellular organisms

Reason- plant cell growth is more uniform 

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-d) Both Assertion and Reason arefalse.

9) Assertion – Apical meristem is present at the growing tips of stems and roots

Reason-Apical meristem is always located upper side of plant

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

10) Assertion- A cell of meristem tissue is very active.

Reason- Meristem tissue is dividing tissue.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

11) Assertion- A cell of meristem tissue is very active.

Reason- Meristem tissue is helps to reproduction of plants

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- c) Assertion is true but Reason is false.

12) Assertion- A cell of meristem tissue is very active.

Reason- Apical tissue is helps to reproduction of plants

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- c) is true but Reason is false.

13) Assertion-A cell of apical tissue is very active.

Reason- Apical tissue is helps to reproduction of plants

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- d) Both Assertion and Reason are false.

14) Assertion-A cell of apical tissue is very active.

Reason- meristem tissue is helps to reproduction of plants.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- d)Both Assertion and Reason are false.

15) Assertion- Differentiation is the process in which it gives permanent shape and size to organisms

Reason- Differentiation process always done by meristematic tissue.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- c)Assertion is true but Reason is false.

16) Assertion- Differentiation is the process in which it gives permanent shape and size to organisms

Reason- Differentiation process always done by permanent tissue.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- a)Assertion and Reason are correct, and reason is the correct explanation for assertion.

17) Assertion- Differentiation is the process in which it gives permanent shape and size to organisms

Reason- Differentiation process always happens during transcription.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- c)Assertion is true but Reason is false.

18) Assertion- Embryo formation is the process in which it gives permanent shape and size to organisms

Reason- Embryo formation always done by permanent tissue.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- d)Both Assertion and Reason are false.

19) Assertion- Paranchyama tissue have large hollow space in its own structure.

Reason-Paranchamous tissue get loosely held to each other.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- a)Assertion and Reason are correct, and reason is the correct explanation for assertion.

20) Assertion- Paranchyama tissue have large hollow space in its own structure.

Reason- Differentiation Leads to the development of various types of permanent  tissue.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- b)Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

21) Assertion- Sclerenchyma tissue have large hollow space in its own structure.

Reason- Differentiation Leads to the development of various types of Sclerenchyma  tissue.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- d) Both Assertion and Reason are false.

22) Assertion- SometimesParanchyama does photosynthesis hence it called chlorenchyma.

Reason- Sometime Paranchyama contain chlorophyll .

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- a)Assertion and Reason are correct, and reason is the correct explanation for assertion.

23) Assertion- Sometimes Paranchyama does photosynthesis hence it called chlorenchyma.

Reason-Paranchyamaholds water hence it called chlorenchyma.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- c)Assertion is true but Reason is false.

24) Assertion-Sometimes Paranchyama absorbs nutrients and charcoal from the soil.

Reason- Paranchyama Have loose absorbing cell which activate when they nutrients in environment.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- d) Both Assertion and Reason are false.

25) Assertion- Sometimes Paranchyama does photosynthesis hence it called chlorenchyma.

Reason- Paranchyama Is the most common simple permanent tissue.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- b)Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

26) Assertion- Sometimes Paranchyama does photosynthesis hence it called chlorenchyma.

Reason- Paranchyama contains large air cavity hence it called chlorenchyma.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- c) Assertion is true but Reason is false.

27) Assertion-Aquatic plants which contain Paranchyama called aerenchyama.

Reason- Paranchyama with large air cavity called aerenchyama.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans –a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

28) Assertion- Aquatic plants which contain Paranchyama called aerenchyama.

Reason-  Paranchyama is the most common simple permanent tissue.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans – b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

29) Assertion- Aquatic plants which contain Paranchyama called aerenchyama.

Reason – Sclerenchyma is the most common simple permanent tissue.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- c) Assertion is true but Reason is false.

30) Assertion- Aquatic plants which contain Paranchyama called aerenchyama.

Reason- The Paranchyama contains chlorophyll hence it called chlorenchyma.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

31) Assertion-Paranchamous tissues of aquatic plants is known as Sclerenchyma tissue.

Reason-Sclerenchyma is the most common simple permanent tissue.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-d) Both Assertion and Reason are false.

32) Assertion-Sclerenchyma tissue makes plant hard and stiff

Reason- plant cells are long and narrow where it is thickened due to presence of lignin is Sclerenchyma.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

33) Assertion- generally seed and nuts are with very hard cover.

Reason- plant cells are long and narrow where it is thickened due to presence of lignin is Sclerenchyma.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-b)  Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

34) Assertion- generally seed and nuts are with very hard cover.

Reason- Sclerenchyma Tissue provides strength to the plant parts hence it makes hard and stiff.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

35) Assertion-Small kidney shaped pores present on leaf called stomata.

Reason-stomata is always present on roots for water absorption.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-c) Assertion is true but Reason is false.

36) Assertion-Small kidney shaped pores present on leaf called stomata.

Reason-stomata is always present on root hairs for water absorption.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-c) is true but Reason is false.

37) Assertion- Paranchyamatissue makes seeds and nuts hard .

Reason- Paranchyama is the most common simple xylem tissue.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- d) Both Assertion and Reason are false.

38) Assertion- Epithelial tissue cells are firmly packed with each other.

Reason-Epithelial tissue contain cementing material hence they packed with each other firmly.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

39) Assertion-Epithelial tissue cells are firmly packed with each other.

Reason- Paranchyama tissue makes plant hard and stiff.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- c) Assertion is true but Reason is false.

40) Assertion-  tissue cells are firmly packed with each other.

Reason-Sclerenchyma tissue makes plant hard and stiff.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- b)Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

41) Assertion-Epithelial tissue cells are loosely packed with each other.

Reason- Paranchyama tissue makes plant hard and stiff.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- d)Both Assertion and Reason are false.

42) Assertion-simple squamous epithelial cells are extremely thin and flat.

Reason- simple squamous epithelialis situated very deep inside the cell hence it called spongy epithelial.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-c)Assertion is true but Reason is false.

43) Assertion-simple squamous epithelial cells are extremely thin and flat.

Reason-simple squamous epithelial cells made up of spongy nucleus.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- c) Assertion is true but Reason is false.

44) Assertion- Squamous epithelium is known as ciliated columnar epithelium.

Reason-simple squamous epithelial cells made up of spongy nucleus.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- d)Both Assertion and Reason are false.

45) Assertion- a blood is a type of connective tissue.

Reason- a blood is the made up of cell fluidy matrix.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- b)Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

46) Assertion- a blood is a type of connective tissue.

Reason- Blood show its own color as red due to the presence of iron.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

47) Assertion- A blood shows its own color in visible light that is red.

Reason-Blood cell contain iron which is responsible for the blood color.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-a)Assertion and Reason are correct, and reason is the correct explanation for assertion.

48) Assertion-A blood shows its own color in visible light that is red.

Reason- sunlight Is the only source Which helps us to recognise matter.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-c) Assertion is true but Reason is false.

49) Assertion-A blood shows its own color in visible light that is red.

Reason- Blood cell contain oxygen which gives red color to liver cell.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- c) Assertion is true but Reason is false

50) Assertion- Muscles are easily contracts and relax it self .

Reason- Muscles contain special protein called contractile protein helps contract and relax of muscles.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- a)Assertion and Reason are correct, and reason is the correct explanation for assertion.

51) Assertion- Muscles are easily contracts and relax it self .

Reason-Muscles contains ligaments which is mostly responsible for contraction and relaxation.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-c) Assertion is true but Reason is false.

52) Assertion- Muscles are easily contracts and relax it self .

Reason-Muscles contains cartilages which is mostly responsible for contraction and relaxation.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans-c) Assertion is true but Reason is false.

53) Assertion- A brain is easily contracts and relax it self .

Reason-Muscles contains cartilages which is mostly responsible for contraction and relaxation.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- d) Both Assertion and Reason are false.

54) Assertion- Nerve cells are the important cells present in the body.

Reason- Nerve cells are helps to control and coordinate the liver function.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- c) Assertion is true but Reason is false.

55) Assertion- Nerve cells are the important cells present in the body.

Reason-Nervous tissue is the specialised tissue for the brain.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

56) Assertion- Nerve cell is the specialised cell for liver.

Reason-liver is the very vital organ which helps to control and coordination of our body.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- d)Both Assertion and Reason are false.

57) Assertion-Nerve cell is very important cell present in our body.

Reason- Nerve tissue is specialised for stimulus that means it transmits stimulus very rapidly in our body.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

58) Assertion-The functional combination of nerve and muscles does due to the nerve fibre.

Reason-Nerve fibre generate nerve impulses Which makes function easy in muscles.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- a)Assertion and Reason are correct, and reason is the correct explanation for assertion.

59) Assertion-The functional combination of nerve and muscles does due to the nerve fibre.

Reason-Nerve fibre generate nerve impulses Which makes function easy in adipose tissue.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- c) Assertion is true but Reason is false.

60) Assertion-The functional combination of nerve and muscles does due to the nerve fibre.

Reason- Nephrons generate nerve impulses Which makes function easy in muscles.

a) Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

Ans- c) Assertion is true but Reason is false.

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Chapter 5 The Fundamental of Life Assertation & Reasoning Questions Class 9th Science

1) ASSERTION-All plants and animals are composed of cells.

REASON-Plants and animals made up of DNA.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

2) ASSERTION-All plants and animals are composed of cells.

REASON-Cell is the basic unit of life.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is the correct explanation for Assertion.

3) ASSERTION-All non-living things composed of cells.

REASON-Cell is the basic unit of non- living things.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are false.

4) ASSERTION-All plants and animals are composed of cells.

REASON-Cell is the basic unit of non-living things.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

5) ASSERTION-Some cells like amoeba have changing shapes.

REASON-Unicellular organisms show cell shape changing features.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

6) ASSERTION-Some cells like amoeba have changing shapes.

REASON-Unicellular organisms show character of prokaryote cells.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS- Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

7) ASSERTION-Some cells like amoeba have changing shapes.

REASON-Prokaryotic cells born with some specific character like change of shape.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

8) ASSERTION-Cell is made up of cell organelles.

REASON-Cell is the basic unit of life.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS- Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

9) ASSERTION-Plasma membrane is present outside the cell

REASON-Plasma membrane did work outside the cell hence it presents outside the cell

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

10) ASSERTION-Plasma membrane is present outside the cell

REASON-Plasma membrane naturally sticks outside the cell

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

11) ASSERTION-Plasma membrane is present outside the cell

REASON-Plasma membrane protects the cell and separates the contents of the cell from its external environment.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

12) ASSERTION-Plasma membrane is also known as selectively permeable membrane.

REASON-Plasma membrane is present outside the cell.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

13) ASSERTION-Plasma membrane is also known as selectively permeable membrane.

REASON-Plasma is present inside the cell.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

14) ASSERTION-Plasma membrane is also known as selectively semi-permeable membrane.

REASON-Plasma is present inside the cell.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are false

15) ASSERTION-Membrane is also known as selectively semi-permeable membrane.

REASON-Membrane is present inside the cell.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are false

16) ASSERTION-Plasma membrane is also known as selectively permeable membrane.

REASON-Plasma membrane allows or permits the entry and exit of some materials in and out of the cell.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS- Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

17) ASSERTION-Carbon dioxide and oxygen move across the cell membrane by diffusion process.

REASON-Plasma membrane allows or permits the entry and exit of some materials in and out of the cell.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS- Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

18) ASSERTION-Carbon dioxide and oxygen move across the cell membrane by diffusion process.

REASON-Carbon dioxide and oxygen are important gases which generates inside the body.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

19) ASSERTION-Carbon dioxide and oxygen move across the cell membrane by diffusion process.

REASON-Carbon dioxide and oxygen are important gases which is very essential for body.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

20) ASSERTION-When oxygen enters in the cell by diffusion that time concentration of oxygen decreases outside the cell.

REASON-Oxygen is very essential for life.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS- Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

21) ASSERTION-When oxygen enters in the cell by diffusion that time concentration of oxygen decreases outside the cell.

REASON-Carbon Dioxide is not essential for body.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

22) ASSERTION-When oxygen enters in the cell by diffusion that time concentration of oxygen decreases outside the cell.

REASON-When oxygen is enters into body that time carbon dioxide get exit from the body via nose.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

23) ASSERTION-When oxygen enters the cell by the process of osmosis that time the concentration of oxygen decreases outside the cell.

REASON-Oxygen is not essential for body.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are false.

24) ASSERTION-When oxygen enters in the cell by diffusion that time concentration of oxygen decreases outside the cell.

REASON-Carbon dioxide is very essential for body.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

25) ASSERTION-The water follows osmosis process which present inside the human body.

REASON-Water which present inside the human body get travelled from low solvent concentration to high solvent concentration.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

26) ASSERTION-The water follows osmosis process which present inside the human body.

REASON-Water is very essential for body.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS- Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

27) ASSERTION-The water follows osmosis process which present inside the human body.

REASON-Human body is made up of 75% of water.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS- Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

28) ASSERTION-The water follows osmosis process which present inside the human body.

REASON-Human body is made up of 75% of water and 20% of carbon dioxide.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

29) ASSERTION-The water follows transcription process which present inside the human body.

REASON-Human body is made up of 75% of water and 20% of carbon dioxide.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are false.

30) ASSERTION-The movement of water across the plasma membrane is also affected by the amount of substance dissolved in water.

REASON-Water does movement inside the body by transcription process.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are false.

31) ASSERTION-The movement of water across the plasma membrane is also affected by the amount of substance dissolved in water.

REASON-Water cannot move inside the body by its own interest it can be move by Vander wall force.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are false.

32) ASSERTION-The movement of water across the plasma membrane is also affected by the amount of substance dissolved in water.

REASON-Osmosis is the net diffusion of water across a selectively permeable membrane towards a higher solute concentration.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

33) ASSERTION-Resin is swell up when it gets contacted with the water.

REASON-Resin absorbs oxygen from environment

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

34) ASSERTION-Resin is swell up when it gets contacted with the water.

REASON-Resin gain food from environment.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

35) ASSERTION-Resin is swell up when it gets contacted with the water.

REASON-Hypotonic solution leads to resin swell up.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

36) ASSERTION-The cell will shrink when it experiences hypertonic solution.

REASON-Hypotonic solution leads to resin swell up.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

37) ASSERTION-The cell will shrink when it experiences hypertonic solution.

REASON-Hypotonic solution leads to resin shrink.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

38) ASSERTION-The cell will shrink when it experiences hypertonic solution.

REASON-Concentration of water is more inside the cell rather than outside, hence the water molecule travelled from inside to out results cell became shrink.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

39) ASSERTION-The cell will shrink when it experiences hypotonic solution.

REASON-Concentration of water is lesser inside the cell rather than outside, hence the water molecule travelled from inside to outside results cell became shrink.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are false.

40) ASSERTION-The cell will shrink when it experiences hypotonic solution.

REASON-Hypotonic solution helps to cell breath.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are false.

41) ASSERTION-Absorption of water by plant root happened by osmosis process.

REASON-Root get absorb nutrient from the soil for plant growth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

42) ASSERTION-Absorption of water by plant root happened by osmosis process.

REASON-Roots are allowing the water via plasma membrane where water can be travelled from high concentration to low concentration or outside the root to inside the plant body.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

43) ASSERTION-Absorption of water by plant root happened by osmosis process.

REASON-Stem get absorb nutrient from the soil for plant growth.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

44) ASSERTION-The nucleus has nuclear membrane which have lots of pores.

REASON-Nucleus is made up of phospholipids.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

45) ASSERTION-The nucleus has nuclear membrane which have lots of pores.

REASON-Plasma membrane is made up of phospholipids.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

46) ASSERTION-The nucleus has nuclear membrane which have lots of pores.

REASON-Nuclear membrane has pores for exit of water.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

47) ASSERTION-The nucleus has nuclear membrane which have lots of pores.

REASON-The nuclear membrane has pores which allow the transfer of water molecule.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

48) ASSERTION-The mitochondria have nuclear membrane which have lots of pores.

REASON-The nuclear membrane has pores which allow the transfer of lipid molecule.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are false.

49) ASSERTION-Nucleus plays central role in cellular functions.

REASON-Nucleus contain chromosomes which is rod like structures.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

50) ASSERTION-Nucleus plays central role in cellular functions.

REASON-Eukaryote organisms have compact nucleus with well cell membrane.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS- Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

51) ASSERTION-Nucleus plays central role in cellular functions.

REASON-Eukaryote’s organisms have not well definite nucleus also the absent cell membrane.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

52) ASSERTION-Nucleus plays central role in cellular functions.

REASON-Nucleus contain chromosomes which are responsible for reproduction hence it does the central role in cell function.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

53) ASSERTION-Bacterial cell does not contain definite nucleus.

REASON-Nucleus is present in all eukaryotic cells.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

54) ASSERTION-Bacterial cell does not contain definite nucleus.

REASON-Nuclear membrane is absent in bacterial cell hence bacteria does not have definite nucleus.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

55) ASSERTION-Bacterial cell does not contain definite nucleus.

REASON- Nucleus contain chromosomes which carries DNA.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

56) ASSERTION- The liver cells are the group of cells are mainly found in the higher animals like human being, tiger etc.

REASON-Liver cells are very important nerve cell

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

57) ASSERTION-Lysosomes is also known as suicide bag.

REASON-The Golgi apparatus takes part to make lysosomes.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

58) ASSERTION-Lysosomes are also known as suicide bag.

REASON-Liver cell present in the liver.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS- Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

59) ASSERTION- Lysosomes are also known as suicide bag.

REASON- Lysosomes get bursts and release enzyme which present in it. That enzyme helps to digest unwanted parts of own cell.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

60) ASSERTION-Mitochondria are the powerhouse of the cell.

REASON-Mitochondria are made up of two layers in which outer layer is made up from pores and inner get deeply folded.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

61) ASSERTION-Mitochondria are the powerhouse of the cell.

REASON-Chromosomes are made up of two layers in which outer layer is made up from pores and inner get deeply folded.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

62) ASSERTION-Mitochondria are the powerhouse of the cell.

REASON-Mitochondria are made up of single tough layer.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

63) ASSERTION-Mitochondria are the powerhouse of the cell.

REASON-The body uses energy which is usually found in the form of ATP’s for making new chemical compounds and mechanical work of body. Those ATP is stored in mitochondria.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

64) ASSERTION-Mitosis is the important cell division process.

REASON-In the mitosis process, each cell born by mother cell.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

65) ASSERTION-The division of cell in two stages that results in four cells,each with half the chromosomes of original cell.

REASON-In the mitosis process, each cell born by mother cell.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

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Chapter 4 Structure of Atom Assertation & Reasoning Questions Class 9th Science

1) ASSERTION-No. of electrons always equal to the proton no. of atom.

REASON-atom is always made-up of proton and electron.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

2) ASSERTION-No. of electrons always equal to the proton no. of atom.

REASON-Atoms are always made up of proton, electron, and neutron.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

3) ASSERION-No. of electrons always equal to the proton no. of atom.

REASON-Same no. of proton and electron present in atom makes it stable.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

4) ASSERION-Electrons can easily remove off but not proton.

REASON-Electrons are more delicate than proton.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

5) ASSERION-Electrons can easily remove off but not proton.

REASON-Protons are stronger than neutron.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

6) ASSERION-Electrons can easily remove off but not proton.

REASON-Electrons are engulfed inside the nucleus.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

7) ASSERION-Electrons can easily remove off but not proton.

REASON-Electrons revolved around the nucleus and proton is tightly held in nucleus due to nucleic force.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

8) ASSERION-Electrons can easily remove off but not proton.

REASON-Protons revolved around the nucleus and electron is tightly held in nucleus due to nucleic force.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

9) ASSERION-Atomic mass is always concentrated inside the nucleus.

REASON-electrons are always revolved around nucleus.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

10) ASSERION-Atomic mass is always concentrated inside the nucleus.

REASON-protons are always embedded inside the nucleus.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

11) ASSERION-Atomic mass is always concentrated inside the nucleus.

REASON-protons are always embedded inside the core of atoms.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

12) ASSERTION-The sum of proton no. and neutron no. gives us atomic mass number of atom.

REASON-Proton no. and neutron no. is always same.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false

13) ASSERTION-Thomson’s says that atoms consist of positively charged sphere and the electrons are embedded in it.

REASON-Positively charged ions always spread inside the core of atoms

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false

14) ASSERTION-Thomson’s says that atoms consist of positively charged sphere and the electrons are embedded in it.

REASON-Negatively charged ions always spread inside the core of atoms.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false

15) ASSERTION-According to Rutherford’s experiment alpha particles are not deflected more than proton.

REASON-Alpha particles are more fragile in nature.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false

16) ASSERTION-According to Rutherford’s experiment alpha particles are not deflected more than proton.

REASON-Proton particles are more fragile in nature.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false

17) ASSERTION-According to Rutherford’s experiment alpha particles are not deflected more than proton.

REASON-Proton particles are heavier than alpha particles.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false

18) ASSERTION-According to Rutherford’s experiment alpha particles are not deflected more than proton.

REASON-alpha particles are heavier than proton particles hence they deflect less.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

19) ASSERTION-According to Rutherford’s experiment alpha particles are not deflected more than proton.

REASON-alpha particles are heavier than neutron particles hence they deflect less.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

20) ASSERTION-According to Rutherford’s experiment alpha particles are not deflected more than proton.

REASON-Neutrons are heavier than proton particles hence they deflect less.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

21) ASSERTION-According to Rutherford’s most of the space inside the atom is empty.

REASON-Rutherford’s seen the empty space present inside the foil.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

22) ASSERTION-According to Rutherford’s most of the space inside the atom is empty.

REASON-Rutherford’s seen the empty space present inside the watermelon.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

23) ASSERTION-According to Rutherford’s most of the space inside the atom is empty.

REASON-Alpha particles do not observeinside the foil.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

24) ASSERTION-According to Rutherford’s most of the space inside the atom is empty.

REASON-Alpha particles are observedwhile doing experiment.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

25) ASSERTION-According to Rutherford’s most of the space inside the atom is empty.

REASON-Alpha particles passed through the gold foil without getting deflected.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

26) ASSERTION-According to Rutherford’s most of the space inside the atom is empty.

REASON-Alpha particles passed through the gold foil with showing more deflection.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

27) ASSERTION-According to Rutherford’s very few particles were deflected from their path.

REASON-Most of the positive charge of the atoms occupies very little space.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

28) ASSERTION-According to Rutherford’s very few particles were deflected from their path.

REASON-Alpha particles passed through the gold foil without getting deflected.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

29) ASSERTION-The size of the nucleus is very small as compared to the size of the atom.

REASON-Nucleus is embedded inside the proton.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

30) ASSERTION-The size of the nucleus is very small as compared to the size of the atom.

REASON-Proton and neutron present inside the nucleus.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

31) ASSERTION-The size of the nucleus is very small as compared to the size of the atom.

REASON-The sum of proton and neutron gives us atomic mass number.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS- Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

32) ASSERTION-The size of the nucleus is very small as compared to the size of the proton.

REASON-The sum of proton and neutron gives us proton mass number.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are false.

33) ASSERTION-The size of the nucleus is very small as compared to the size of the atom.

REASON-Nucleus contain proton and neutron which always present inside the atom hence its size is smaller than atom.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

34) ASSERTION-Electrons revolve around the nucleus with different orbits.

REASON-Electrons do not want to travel with same path.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

35) ASSERTION-Electrons revolve around the nucleus with different orbits.

REASON-Electrons always travelled with proton hence they revolved with a different track.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

36) ASSERTION-Electrons revolve around the nucleus with different orbits.

REASON-K, L, M, N is the name of orbits which present outside the nucleus.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

37) ASSERTION-Electrons revolve around the nucleus with different orbits.

REASON-K, L, M, N is the name of electrons which present outside the nucleus.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

38) ASSERTION-Electrons revolve around the nucleus with different orbits.

REASON-electrons have different- different energy hence they revolve separately.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

39) ASSERTION- K-shell contain two electrons.

REASON-Every shells has its own capacity to hold electrons hence K shell follows 2N2  rule.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

40) ASSERTION- K-shell contain two electrons.

REASON-Every shell has its own capacity to hold electrons hence K shell follows 2n2rule.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

41) ASSERTION- K-shell contain two electrons.

REASON-Every shell has its own capacity to hold electrons hence K shell follows n2rule.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

42) ASSERTION- L-shell contain two electrons.

REASON-Every shell has its own capacity to hold electrons hence K shell follows n2rule.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are false.

43) ASSERTION- L-shell contain eight electrons.

REASON-L shell comes after the K shell.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

44) ASSERTION- L-shell contain eight electrons.

REASON-L shell comes after the M shell.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

45) ASSERTION- L-shell contain eight electrons.

REASON-Every shell has its own capacity to hold electrons hence L shell follows 2n2rule.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

46) ASSERTION-Helium atom has two electrons in its outermost shell.

REASON-Helium is the second element present in the periodic table.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS- Both Assertion and Reason are correct, and reason is not the correct explanation for assertion.

47) ASSERTION-Helium atom has two electrons in its outermost shell.

REASON-Helium is the first element present in the periodic table.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

48) ASSERTION-Fluorine have one valency.

REASON-Seven electrons revolved around the fluorine atom.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Assertion is true but Reason is false.

49) ASSERTION-Atomic mass of carbon is 12.

REASON- Carbon has 6 proton number.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

50) ASSERTION-Atomic mass of carbon is 12.

REASON- Carbon has 6 neutron number.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS- Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

51) ASSERTION-Atomic mass of carbon is 12.

REASON- Carbon has 6 neutron number and 6 proton number.

a) Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

b) Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

c) Assertion is true but Reason is false.

d) Both Assertion and Reason are false.

ANS-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

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