Author Archives: school

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.

1) ASSERTION-Atom is the smallest unit of molecule

REASON-Atom is not seen by our naked eyes

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

b) Both Assertion and Reason are correct, and 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-Atom is the smallest unit of molecule

REASON-Atoms are combined with each other forming 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 not the correct explanation for Assertion.

3) ASSERTION-Mass can neither be created nor destroyed in chemical reaction

REASON-Mass can convert its own form while chemical reaction been complete.

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

b) Both Assertion and Reason are correct, and 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-Mass can be created and also destroyed in chemical reaction

REASON-Mass can convert its own form while chemical reaction been complete.

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

b) Both Assertion and Reason are correct, and 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-In a water compound ration of mass of hydrogen to oxygen is always 1:8.

REASON- Standard weight of hydrogen molecule is 8 gram 

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

b) Both Assertion and Reason are correct, and 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-In a water compound ration of mass of hydrogen to oxygen is always 1:8.

REASON- Standard weight of Oxygen molecule is 8 grams

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

b) Both Assertion and Reason are correct, and 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-In a water compound ration of mass of hydrogen to oxygen is always 1:8.

REASON- Standard weight of Oxygen molecule is 1 gram

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

b) Both Assertion and Reason are correct, and 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-In a water compound ration of mass of hydrogen to oxygen is always 1:8.

REASON- In a chemical substance the elements are always present in definite proportions by mass.

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

b) Both Assertion and Reason are correct, and 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-In a water compound ration of mass of hydrogen to oxygen is always 1:8.

REASON- In the water molecule Oxygen and Hydrogen is always present in definite proportions by mass that is the reason it is become stable 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.

10) ASSERTION-In the ammonia molecule Nitrogen and Hydrogen are always present in the ratio 3:14.

REASON-In a chemical substance the elements are not always present in definite proportions by mass.

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

b) Both Assertion and Reason are correct, and 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 ammonia molecule Nitrogen and Hydrogen are always present in the ratio 14:3

REASON-In a chemical substance the elements arealways present in definite proportions by mass.

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

b) Both Assertion and Reason are correct, and 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-In the ammonia molecule Nitrogen and Hydrogen are always present in the ratio 14:2

REASON-In the ammonia elements are not present in the definite proportions by mass.

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

b) Both Assertion and Reason are correct, and 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-Atoms are always taking part in chemical reaction.

REASON-Atoms are the catalyst.

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

b) Both Assertion and Reason are correct, and 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-Atoms are always taking part in chemical reaction.

REASON-Atoms is always exist in the gas form hence it always found in chemical reaction.

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

b) Both Assertion and Reason are correct, and 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-Atoms are always taking part in chemical reaction.

REASON-Atoms are tiny particle of molecule hence every chemical reaction happens by those tiny particles called 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.

16) ASSERTION-The symbol of iron is Fe.

REASON-Iron is the hard metal

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

b) Both Assertion and Reason are correct, and 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-The symbol of iron is Fe.

REASON-Iron is the soft matter.

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

b) Both Assertion and Reason are correct, and 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-The symbol of iron is Fe.

REASON-Latin name of iron is ferrum.

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

b) Both Assertion and Reason are correct, and 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-The symbol of sodium is Na.

REASON-Latin name of Sodium is ferrum.

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

b) Both Assertion and Reason are correct, and 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-The symbol of sodium is Fe.

REASON-Latin name of Sodium is ferrum.

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

b) Both Assertion and Reason are correct, and 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-One atomic mass unit equal to exactly one-twelfth the mass of one atom of carbon-12.

REASON-The relative atomic masses of all elements have been found with respect to an atom of carbon-12.

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

b) Both Assertion and Reason are correct, and 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-Oxygen molecule is known as diatomic molecule.

REASON-Oxygen is always takes part in chemical reaction.

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

b) Both Assertion and Reason are correct, and 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-Oxygen molecule is known as diatomic molecule.

REASON-Oxygen is always taking part for making 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-Assertion is true but Reason is false.

24) ASSERTION-Oxygen molecule is known as diatomic molecule.

REASON-Two Oxygen atoms get combine and for molecule hence it called diatomic 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.

25) ASSERTION-Sodium chloride molecule is made up of two different ions.

REASON-Sodium chloride is usually used for making food.

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

b) Both Assertion and Reason are correct, and 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-Sodium chloride molecule is made up of two different ions.

REASON-Sodium chloride is known as baking soda.

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

b) Both Assertion and Reason are correct, and 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-Sodium chloride molecule is made up of two different ions.

REASON-In the sodium chloride molecule, sodium carries positive charge and chlorine carries neutral charge.

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

b) Both Assertion and Reason are correct, and 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-Sodium chloride molecule is made up of two different ions.

REASON-In the sodium chloride molecule, sodium carries positive charge and chlorine carries negative charge.

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

b) Both Assertion and Reason are correct, and 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.

29) ASSERTION-The combining power of an element is known as its valency.

REASON-valency can be used to find out how the atoms of an element will combine with the atoms of another element to form chemical compound.

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

b) Both Assertion and Reason are correct, and 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-The combining power of an element is known as its charge.

REASON-valency can be used to find out how the charge of an element will combine with the charge of another element to form chemical compound.

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

b) Both Assertion and Reason are correct, and 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 valencies or charges on the ion must balance in every compound.

REASON-Valencies are always found on top of the compound.

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

b) Both Assertion and Reason are correct, and 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-The valencies or charges on the ion must balance in every compound.

REASON-Valencies are always found behind the compound.

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

b) Both Assertion and Reason are correct, and 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-The valencies or charges on the ion must balance in every compound.

REASON-balanced valencies or charges gives stability to every compound.

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

b) Both Assertion and Reason are correct, and 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- Formula of the hydrogen chloride is HCl.

REASON-Valency of the HCl is 2,1.

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.

35) ASSERTION- Formula of the hydrogen chloride is HCl.

REASON-Valency of sodium chloride is 2 and 5 hence its formula became HCl .

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

b) Both Assertion and Reason are correct, and 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- Formula of the hydrogen chloride is HCl.

REASON- in this compound H is present with 1 valency whereas Cl is present with 1 valency hence its formula became HCl

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

b) Both Assertion and Reason are correct, and 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.

37) ASSERTION-H2S is the formula of hydrogen sulphide.

REASON-Valency of sodium chloride is 2 and 5 hence its formula became H2S.

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

b) Both Assertion and Reason are correct, and 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-H2S is the formula of hydrogen sulphide.

REASON-Valency of sodium sulphide is 2 and 1 hence its formula became H2S.

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

b) Both Assertion and Reason are correct, and 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-H2S is the formula of hydrogen sulphide.

REASON- in this compound H is present with 1 valency whereas S present with 2 valency hence its formula became H2S.

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

b) Both Assertion and Reason are correct, and 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-The formula of sodium carbonate is Na2 CO3

REASON-In the sodium carbonate there is two different ions takes part.

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

b) Both Assertion and Reason are correct, and 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-The formula of sodium carbonate is Na2 CO3

REASON-In the sodium carbonate there is two same kind of ions 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-Assertion is true but Reason is false.

42) ASSERTION-The formula of sodium carbonate is Na2 CO3

REASON-In the sodium carbonate, sodium carries +1 charge and carbonate carries -2 charge.

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

b) Both Assertion and Reason are correct, and 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-The formula of sodium carbonate is Na2 CO3

REASON-In the sodium carbonate, sodium carries -2 charge and carbonate carries +1 charge.

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

b) Both Assertion and Reason are correct, and 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 formula of sodium carbonate is NaCO3

REASON-In the sodium carbonate, sodium carries -2 charge and carbonate carries +1 charge.

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

b) Both Assertion and Reason are correct, and 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.

45) ASSERTION-The formula of the ammonium sulphate is (NH4)2 SO4.

REASON-Ammonia molecule helps to environment for anaerobic respiration.

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

b) Both Assertion and Reason are correct, and 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 formula of the ammonium sulphate is (NH4)2 SO4.

REASON-Ammonia molecule helps to environment for aerobic respiration.

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

b) Both Assertion and Reason are correct, and 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 formula of the ammonium sulphate is (NH4)2 SO4.

REASON-Ammonium sulphate molecule generates two different kind of ions like cation and anion.

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

b) Both Assertion and Reason are correct, and 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.

48) ASSERTION-The formula of the ammonium sulphate is (NH4)2 SO4.

REASON-Ammonium sulphate molecule generates two same kinds of ions.

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

b) Both Assertion and Reason are correct, and 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 formula of the ammonium sulphate is (NH4)2 SO4.

REASON-The ammonium sulphate generates NH4 cation with +1 charge and SO4anion with a -2 charge.

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

b) Both Assertion and Reason are correct, and 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.

50) ASSERTION-The formula of the ammonium sulphate is (NH4)2 SO4.

REASON-The ammonium sulphate generates NH4 cation with -2 charge and SO4 anion +1 with a charge.

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

b) Both Assertion and Reason are correct, and 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.

51) ASSERTION-The molecular mass of water is 18.

REASON- Water is heavy molecule which weigh by analytical balance.

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

b) Both Assertion and Reason are correct, and 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-The molecular mass of water is 18.

REASON- Water is made up of two different 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 correct, and Reason is not the correct explanation for Assertion.

53) ASSERTION-The molecular mass of water is 18.

REASON- Water is made up of Hydrogen and Nitrogen 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-Assertion is true but Reason is false.

54) ASSERTION-The molecular mass of water is 18.

REASON- Water is made up of Hydrogen and Oxygen 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 not the correct explanation for Assertion.

55) ASSERTION-The molecular mass of water is 18.

REASON- Water is made up of Hydrogen and Oxygen molecule where hydrogen is present with atomic no. 1 and Oxygen present with atomic no. 8.

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

b) Both Assertion and Reason are correct, and 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.

56) ASSERTION-The molecular mass of water is 18.

REASON- Water is made up of Hydrogen and Oxygen molecule where hydrogen is present with atomic no. 1 and Oxygen present with atomic no. 16.

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

b) Both Assertion and Reason are correct, and 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-The molecular mass of water is 18.

REASON- Water is made up of Hydrogen and Oxygen molecule where hydrogen is present with atomic no. 2 and Oxygen present with atomic no. 16.

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

b) Both Assertion and Reason are correct, and 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-The molecular mass of water is 18.

REASON- Water is made up of Hydrogen and Oxygen molecule where hydrogen is present with atomic mass no. 2 and Oxygen present with atomic mass no. 16.

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

b) Both Assertion and Reason are correct, and 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.

59) ASSERTION-The molecular mass of NaCl is 58.5 u.

REASON-The mass of substance is the sum of the atomic masses of all atoms in a formula unit of compound.

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

b) Both Assertion and Reason are correct, and 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-The molecular mass of NaCl is 58.5 u.

REASON-The mass of Na is 23.

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

b) Both Assertion and Reason are correct, and 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-The molecular mass of NaCl is 58.5 u.

REASON-The mass of Cl is 35.5.

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 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.

62) ASSERTION-The molecular mass of NaCl is 58.5 u.

REASON-The mass of Cl is 35.5 and Na is 23 so the sum of those two molecules gives us molecular mass of NaCl.

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

b) Both Assertion and Reason are correct, and 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.

63) ASSERTION-The molecular mass of NaCl is 58.5 u.

REASON-The mass of Na is 35.5 and Cl is 23 so the sum of those two molecules gives us molecular mass of NaCl.

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

b) Both Assertion and Reason are correct, and 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.

64) ASSERTION-Two molecules of hydrogen combine with one molecule of oxygen gives water molecule.

REASON-Oxygen and hydrogen perfectly mixes according to their valencies.

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

b) Both Assertion and Reason are correct, and 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-Two molecules of hydrogen combine with one molecule of oxygen and nitrogen gives water molecule.

REASON-Oxygen and nitrogen perfectly mixes according to their valencies.

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

b) Both Assertion and Reason are correct, and 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.

66) ASSERTION-Two molecules of hydrogen combine with one molecule of oxygen gives water molecule.

REASON-Oxygen and hydroxide perfectly mixes according to their valencies.

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

b) Both Assertion and Reason are correct, and 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-288 nos means 2 gross

REASON-One dozen means 6 nos which standard relation.

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

b) Both Assertion and Reason are correct, and 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-288 nos mean 2 gross

REASON-One dozen means 12 nos which standard relation.

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

b) Both Assertion and Reason are correct, and 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.

69) ASSERTION-288 nos mean 1 gross

REASON-One dozen means 6nos which standard relation.

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

b) Both Assertion and Reason are correct, and 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-288 nos mean 2 gross

REASON-One gross means 144 nos which standard relation.

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

b) Both Assertion and Reason are correct, and 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.

71) ASSERTION-Gram atomic mass of the hydrogen is 1 gram.

REASON-Hydrogen molecule easily combines with chlorine molecule which has one valency.

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

b) Both Assertion and Reason are correct, and 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.

72) ASSERTION-Gram atomic mass of the hydrogen is 1 gram.

REASON-1 is the atomic number of hydrogen.

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

b) Both Assertion and Reason are correct, and 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.

1.) ASSERTION-Oxygen atom is pure substance.

REASON-Oxygen is never found in any combine state.

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

b.) Both Assertion and Reason are correct, and 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-Oxygen atom is pure substance.

REASON-Oxygen is always found in combine state.

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

b.) Both Assertion and Reason are correct, and 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.) ASSERTION-Oxygen atom is pure substance.

REASON-All constituent particle of oxygen is the same in its chemical 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- Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion

4.) ASSERTION-SODIUM CHLORIDE is always existed in mixture form.

REASON-Substance which made up of more than one constituent called mixture.

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

b.) Both Assertion and Reason are correct, and 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

5.) ASSERTION-SODIUM CHLORIDE is always existed in mixture form.

REASON-Substance which made up of more than one constituent called mixture.

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

b.) Both Assertion and Reason are correct, and 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

6.) ASSERTION-SODIUM CHLORIDE is always existed in mixture form.

REASON-Substance which made up of more than one constituent like chlorine and sodium called mixture.

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

b.) Both Assertion and Reason are correct, and 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-Soft drink and soil is not pure substances.

REASON-Substance which made up of less than two constituent called mixture.

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

b.) Both Assertion and Reason are correct, and 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-Soft drink and soil is not pure substances.

REASON-Substance which made up of more than one constituent called mixture.

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

b.) Both Assertion and Reason are correct, and 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-Soft drink and soil is not pure substances.

REASON-Substance which made up of only one constituent is called pure substance. Soft drink and soil are made up of more than one constituent hence it comes under mixture.

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

b.) Both Assertion and Reason are correct, and 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 the correct explanation for Assertion.

10.) ASSERTION-Steel is the alloy substance.

REASON-Substance which made up of more than one constituent called mixture.

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

b.) Both Assertion and Reason are correct, and 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.) ASSERTION-Steel is the alloy substance.

REASON-Substance which made up of less than one constituent called mixture.

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

b.) Both Assertion and Reason are correct, and 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-Steel is the alloy substance.

REASON-Alloy are mixture of gaseous hence steel is a alloy.

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

b.) Both Assertion and Reason are correct, and 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-Steel is the alloy substance.

REASON-Alloy are mixture of two or metals or metal and a non- metal and cannot be separated into their components by physical methods.

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

b.) Both Assertion and Reason are correct, and 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.

14.) ASSERTION- Sugar water is the solution, where water is act as a solvent.

REASON-solution is made up of solute and solvent.

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

b.) Both Assertion and Reason are correct, and 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.

15.) ASSERTION- Sugar water is the solution, where water is act as a solvent.

REASON-Sugar solution is made up of solute and solvent where the large area of the solution, occupied by solute.

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

b.) Both Assertion and Reason are correct, and 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- Sugar water is the solution, where water is act as a solvent.

REASON-Sugar solution is made up of solute and solvent where the large area of the solution occupied by solvent hence water is act as solvent in sugar 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 the correct explanation for assertion

17.) ASSERTION- Sugar water is the solution, where sugar is act as a solvent.

REASON-Solution is made up of solutes.

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

b.) Both Assertion and Reason are correct, and 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- Sugar water is the solution, where sugar is act as a solute.

REASON-Solution is made up of solute and solvent.

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

b.) Both Assertion and Reason are correct, and 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- Sugar water is the best example of solution.

REASON-Solution is made up of solute and solvent. So here sugar is the solute and water are act as solvent.

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

b.) Both Assertion and Reason are correct, and 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.

20.) ASSERTION- A solution is the homogeneous mixture.

REASON-Sugar is the part of sugar solution.

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

b.) Both Assertion and Reason are correct, and 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-The solute particles cannot be separated from the mixture by the process of filtration.

REASON-Solution is the homogenous mixture hence its solute particles cannot separate from each other.

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

b.) Both Assertion and Reason are correct, and 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 isthe correct explanation for Assertion.

22.)  ASSERTION-2 gram of sugar cannot properly dissolve in 1 liter of water.

REASON-Sugar is always miscible with salt.

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

b.) Both Assertion and Reason are correct, and 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-2 gram of sugar cannot properly dissolve in 1 liter of water.

REASON-Sugar is always miscible in 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.

24.) ASSERTION-2 gram of sugar cannot properly dissolve in 1 liter of water.

REASON-Sugar is solute which easily dissolved in 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.

25.) ASSERTION-2 gram of sugar cannot properly dissolve in 1 liter of water.

REASON-Saturation is the stage where the any excess of solute cannot get further dissolved in solvent.

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

b.) Both Assertion and Reason are correct, and 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-When solution contains 40 gramsof common salt with total mass of solution is 360 grams.

REASON-Mass of solvent is 40 grams.

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

b.) Both Assertion and Reason are correct, and 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-When solution contains 40 grams of common salt with total mass of solution is 360 grams.

REASON-Mass of solvent is 300 grams.

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

b.) Both Assertion and Reason are correct, and 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-When solution contains 40 grams of common salt with total mass of solution is 360 grams.

REASON-Mass of solvent is 320 grams.

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

b.) Both Assertion and Reason are correct, and 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.

29.) ASSERTION-The particles of a suspension can be seen by the naked eye.

REASON-Suspension is a homogenous mixture.

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

b.) Both Assertion and Reason are correct, and 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 particles of a suspension can be seen by the naked eye.

REASON-Suspension is a heterogenous mixture.

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

b.) Both Assertion and Reason are correct, and 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-Tyndall effect can also be observed when a fine beam of light enters a room through a small hole.

REASON-Suspension is a heterogenous mixture.

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

b.) Both Assertion and Reason are correct, and 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-Tyndall effect can also be observed when a fine beam of light enters a room through a small hole.

REASON-Scattering of light by the particles of dust and smoke in the air cause a Tyndall effect.

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

b.) Both Assertion and Reason are correct, and 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-The solution of copper sulphate does not show Tyndall effect.

REASON-Suspension is a heterogenous mixture.

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

b.) Both Assertion and Reason are correct, and 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-The solution of copper sulphate does not show Tyndall effect.

REASON-Suspension is a homogenous mixture.

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

b.) Both Assertion and Reason are correct, and 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-The mixture of water and milk shows Tyndall effect.

REASON-Suspension is a heterogenous mixture.

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

b.) Both Assertion and Reason are correct, and 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-The Tyndall effect can be observed when sunlight passes through the canopy of dense forest.

REASON-Scattering of light by the particles of dust and smoke in the air cause a Tyndall effect.

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

b.) Both Assertion and Reason are correct, and 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 Tyndall effect can be observed when sunlight passes through the canopy of dense forest.

REASON-Scattering of light by the particles of dust and smoke in the air cause a DISPERSION.

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

b.) Both Assertion and Reason are correct, and 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 Dispersion can be observed when sunlight passes through the canopy of dense forest.

REASON-Scattering of light by the particles of dust and smoke in the air cause a DISPERSION.

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

b.) Both Assertion and Reason are correct, and 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-The Tyndall effect can be observed when sunlight passes through the canopy of dense forest.

REASON-In the forest, mist contains tiny droplets of water, which act as particles of colloid dispersed in air.

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

b.) Both Assertion and Reason are correct, and 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-Heterogenous mixtures can be separated into their respective constituents by simple physical methods.

REASON- Heterogenous mixture is made up of one constituent.

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

b.) Both Assertion and Reason are correct, and 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-Heterogenous mixtures can be separated into their respective constituents by simple physical methods.

REASON- Heterogenous mixture is made up of more than one constituent which is easily recognize by naked eyes.

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

b.) Both Assertion and Reason are correct, and 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.

42.) ASSERTION-The camphor and salt can be easily separates by physical method.)

REASON- Heterogenous mixtures can be separated into their respective constituents by simple physical methods.

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

b.) Both Assertion and Reason are correct, and 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 camphor and salt can be easily separates by physical method.)

REASON-Heterogenous mixtures can be separated into their respective constituents by simple chemical methods.

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

b.) Both Assertion and Reason are correct, and 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 camphor and salt can be easily separates by physical method.)

REASON-The camphor changes directly from solid to gaseous state o heating. So, to separates such mixtures contain a sublimable volatile component from a non-sublimely impurity, the sublimation is used.)

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

b.) Both Assertion and Reason are correct, and 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-The sea water can purify by crystallization method.)

REASON-Heterogenous mixtures can be separated into their respective constituents by simple chemical methods.

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

b.) Both Assertion and Reason are correct, and 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 sea water can purify by crystallization method.)

REASON-Crystallization is a process that separates a pure salt in its crystal from a impure salt solution.

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

b.) Both Assertion and Reason are correct, and 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.

47.) ASSERTION- Oil starts burning in presence of fire which change is happens due to chemical change.

REASON-Inflammation is always seen in presence of oxygen.

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

b.) Both Assertion and Reason are correct, and 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.

48.) ASSERTION- Inflammation is always seen in presence of oxygen.

REASON- Oil starts burning in presence of fire which change is happens due to chemical change.

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

b.) Both Assertion and Reason are correct, and 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.

49.) ASSERTION- Oil starts burning in presence of fire which change is happens due to chemical change.

REASON-The process in which one substance reacts with another to undergo a change in chemical composition hence oil burning is the example of chemical change.

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

b.) Both Assertion and Reason are correct, and 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.

50.) ASSERTION- Element is the basic form of matter.

REASON-Element is reacted with some other element form 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-Assertion is true but Reason is false.

51.) ASSERTION- Element is the basic form of matter.

REASON-Element is smallest unit which cannot further break in any substance hence it is pure form.

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

b.) Both Assertion and Reason are correct, and 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.

52.) ASSERTION-Metal is good conductor of electricity.

REASON-Metal generates electricity in the electric plug.

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

b.) Both Assertion and Reason are correct, and 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.

53.) ASSERTION-Metal is good conductor of electricity.

REASON-Metal are ductile.

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

b.) Both Assertion and Reason are correct, and 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- Mercury is the only metal which always seen in liquid state at room temperature.

REASON-Mercury is the bad conductor of electricity.

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

b.) Both Assertion and Reason are correct, and 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- Mercury is the only metal which always seen in solid state at room temperature.

REASON-Mercury is the bad conductor of electricity.

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

b.) Both Assertion and Reason are correct, and 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-Silicon, Germanium, boron is generally called metalloids.

REASON-Metalloids is good conductor of electricity.

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

b.) Both Assertion and Reason are correct, and 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-Silicon, Germanium, boron is generally called metalloids.

REASON-Silicon, Germanium, and boron are shows voids in there structure hence it called metalloid.)

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

b.) Both Assertion and Reason are correct, and 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-Silicon, Germanium, boron is generally called metalloids.

REASON-Silicon, Germanium, and boron are shows both character of metal and non-metal hence it called metalloid.)

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

b.) Both Assertion and Reason are correct, and 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.

59.) ASSERTION-Element reacts with another element and form new compound.)

REASON-It is a combination reaction.

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

b.) Both Assertion and Reason are correct, and 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-Element reacts with another element and form a solution.

REASON-It is a not a combination reaction.

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

b.) Both Assertion and Reason are correct, and 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.

1.) ASSERTION-Sugar and Salt both are easily dissolved in water.

REASON    – Sugar and Salt are solid hence it is easily dissolved in 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.

2.) ASSERTION-When sugar pour in water, then taste of water became a sweet.

Reason-sugar completely dissolved in water with giving its own character.

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

b.) Both Assertion and Reason are correct, and 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-ice is float on water.

REASON-ice is solid 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-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

4.) ASSERTION-ice is float on water.

REASON- Density of ice is lesser than 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 the correct explanation for Assertion.

5.) ASSERTION-SI unit of mass is kg.

REASON- meaning of kg is 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-Both Assertion and Reason are correct, and Reason is not the correct explanation for Assertion.

6.) ASSERTION-2L means 2000 mL

REASON-1L means 1000 mL hence 2L means 2000 mL which is standard relation.

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

b.) Both Assertion and Reason are correct, and 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- 1 dm3means 0.1 L

REASON-0.1 L means 1000 mL is the standard relation.

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

b.) Both Assertion and Reason are correct, and 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.) ASSERION-Dilution of any colored compound in water shows light color than original color of compound.) ( hint- potassium permanganate dissolve in water)

REASON-when dilution is done by water the quantity of particle getting decreases by dilution hence it shows light color.

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

b.) Both Assertion and Reason are correct, and 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.) ASSERION-Dilution of any colored compound in water shows light color than original color of compound.) (hint- potassium permanganate dissolve in water)

REASON- Compound do not shows light color.

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

b.) Both Assertion and Reason are correct, and 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- Particles in liquid state shows motion.

REASON-It possess potential 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.

11.)  ASSERTION- Particles in liquid state shows motion.

REASON-It possess kinetic 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-Both Assertion and Reason are correct, and reason is the correct explanation for assertion.

12.) ASSERTION-Particles of matter held together by making any state.

REASON-intermixing of particles of two different type of matter on there own is called diffusion.

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

b.) Both Assertion and Reason are correct, and 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-Particles of matter held together by making any state.

REASON-Motion is acting on their state.

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

b.) Both Assertion and Reason are correct, and 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-Particles of matter held together by making any state.

REASON-Every particles of matter held together by particular type of attractive 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-Every particle of matter is float on air.

REASON-Every particle of matter held together by kinetic 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-Both Assertion and Reason are false.

16.) ASSERTION-The matter around us exists in three different states solid, liquid, gas

REASON-These states arise due to the variation in characteristics of the particle of matter.

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

b.) Both Assertion and Reason are correct, and 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-The matter around us exists in three different states solid, liquid, gas.

REASON-These states arise due to the Brownian motion seen in the particles of matter.

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

b.) Both Assertion and Reason are correct, and 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-Particles in liquid state shows motion.

REASON-The matter around us exists in three different states solid, liquid, gas.

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

b.) Both Assertion and Reason are correct, and 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-A sponge is the solid matter which we easily compressed by our hand .

REASON- The matter around us exists in three different states solid, liquid, gas.

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

b.) Both Assertion and Reason are correct, and 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.

20.) ASSERTION-A sponge is the solid matter which we easily compressed by our hand .

REASON-Sponge has minute hole which is full of air by pressing it the air is further absorbed in hole.

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

b.) Both Assertion and Reason are correct, and 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-A sponge is the solid matter which we easily compressed by our hand .

REASON-Sponge has minute hole which is full of air by pressing it the air is expelled out.

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

b.) Both Assertion and Reason are correct, and 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.

22.) ASSERTION-Solids may break under force but it is difficult to change their shape.

REASON- Solids are rigid

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

b.) Both Assertion and Reason are correct, and 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.

23.) ASSERTION-Solids may break under force, but it is difficult to change their shape.

REASON- Solids have negligible compressibility.

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

b.) Both Assertion and Reason are correct, and 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-The oxygen and carbon dioxide are essential for aquatic animal and plants.

REASON- Gaseous are dissolved in water by diffusion 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 correct, and reason is the correct explanation for assertion.

25.) ASSERTION-The oxygen and carbon dioxide are essential for aquatic animal and plants.

REASON- Gaseous are dissolved in cold drink by osmosis 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-Assertion is true but Reason is false.

26.) ASSERION- All aquatic animals can easily breath under water.

REASON-Aquatic animals’ breath under water by taking dissolved hydrogen in 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 the correct explanation for assertion.

ANS-Assertion is true but Reason is false.

27.) ASSERION- All aquatic animals can easily breath under water.

REASON-Aquatic animals’ breath under water by taking dissolved oxygen in 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 the correct explanation for assertion.

28.) ASSERTION-Liquids cannot change its shape.

REASON- Liquid is rigid 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-Both Assertion and Reason are false.

29.) ASSERTION- Most of the solid, liquid, gaseous can diffuse into liquids.

REASON-Liquids cannot change its 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.

30.) ASSERTION- Liquids can change its shape.

REASON- Most of the solid, liquid, gaseous can diffuse into liquids.

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

b.) Both Assertion and Reason are correct, and 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.

31. ASSERTION-Compressed natural gas is used as fuel in vehicles.

REASON- CNG is contain natural gas

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

b.) Both Assertion and Reason are correct, and 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-Compressed natural gas is used as fuel in vehicles.

REASON-CNG is a highly compressed natural gas which can compressed into small cylinder and transported 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.

33.) ASSERTION-Water is the liquid form of ice

REASON-Ice absorbs heat from surrounding by forming 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 the correct explanation for assertion.

34.) ASSERION-Water is the liquid form of ice

REASON-Ice is the solid form 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.

35.) ASSERION-Ice is the liquid form of water.

REASON-Water is the solid form of Ice.

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

b.) Both Assertion and Reason are correct, and 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.) ASSERION-Vapor is the liquid form of ice

REASON-Ice is the solid form 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 false.

37.) ASSERTION-Particles in steam that is water vapor at 373K have more energy than water at same temperature.

REASON-Particles in steam have absorbed extra energy in the form of latent heat of vaporization.

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

b.) Both Assertion and Reason are correct, and 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.

38.) ASSERTION-Particles in steam that is water vapor at 373K have more energy than water at same temperature

REASON-Solid particles have high melting point than 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.

39.) ASSERTION- Solid carbon dioxide is known as dry ice.

REASON-Solid is always showing dry nature hence carbon dioxide is known as dry ice.

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

b.) Both Assertion and Reason are correct, and 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- Solid carbon dioxide is known as dry ice.

REASON-Solid carbon dioxide gets converted directly to gases state on decrease of pressure to 2 atmospheres without coming into solid state.

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

b.) Both Assertion and Reason are correct, and 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- Solid carbon dioxide is known as dry ice.

REASON-Solid carbon dioxide gets converted directly to gases state on decrease of pressure to 1 atmosphere without coming into liquid state.

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

b.) Both Assertion and Reason are correct, and 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.

42.)  ASSETION-A change of state directly from solid to gas without changing into liquid state is called sublimation.

REASON- Solid cannot lived in one form

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

b.) Both Assertion and Reason are correct, and 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.) ASSETION-A change of state directly from solid to gas without changing into liquid state is called deposition.

REASON- Solid cannot lived in one form

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

b.) Both Assertion and Reason are correct, and 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-liquid is vaporized and forms gas.

REASON-Water always exists in liquid form.

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

b.) Both Assertion and Reason are correct, and 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-Water is always existing in liquid form.

REASON-Water is known as universal solvent.

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

b.) Both Assertion and Reason are correct, and 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 pressure is kilogram

REASON-Pressure is the measurement of gas.

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

b.) Both Assertion and Reason are correct, and 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.) ASEERTION- Water is the universal solvent.

REASON- Most of the solvent get dissolved in 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.

48.) ASEERTION- Water is the universal solvent.

REASON- Most of the solute get dissolved in 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 the correct explanation for assertion.

49.) ASSSERTION-Water occupy structure of any kind of container.

REASON-Water has liquid state.

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

b.) Both Assertion and Reason are correct, and 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-Peoples are sprinkle water on roof or open ground in hot sunny days.

REASON-Most of the solute get dissolved in 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.

51.) ASSERTION-Peoples are sprinkle water on roof or open ground in hot sunny days.

REASON-Water gives coolness to roof.

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

b.) Both Assertion and Reason are correct, and 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.

52.) ASSERTION-Peoples are sprinkle water on roof or open ground in hot sunny days.

REASON-the large latent heat of vaporization of water helps to cool the hot surface of roof.

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

b.) Both Assertion and Reason are correct, and 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- The palm feels cool when acetone falls on the nails and hands.

REASON-The particles on nails or palm gain energy from surroundings and evaporate causing palm to feel cool.

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

b.) Both Assertion and Reason are correct, and 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.

54.) ASSERTION- The palm feels cool when acetone falls on the nails and hands.

REASON-The particles on nails or palm loose energy hence we feel cool.

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

b.) Both Assertion and Reason are correct, and 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.

55.) ASSERTION-During summer we perspire more than regular days.

REASON-During summer days decreases level of oxygen.

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

b.) Both Assertion and Reason are correct, and 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.

56.) ASSERTION-During summer we perspire more than regular days.

REASON-During summer days increases level of oxygen.

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

b.) Both Assertion and Reason are correct, and 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-During summer we perspire more than regular days.

REASON-During summer days our body did such a special type of mechanism for giving us coolness.

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

b.) Both Assertion and Reason are correct, and 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.

58.) ASSERTION- Matter is made up of small particles.

REASON-Small particle of matter has more 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.

59.) ASSERTION- Matter is made up of big particle.

REASON-Small particle of matter has more 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-Both Assertion and Reason are false.

60.) ASSERTION- Forces of attraction between the particles are maximum in solids, intermediate in gaseous and minimum in liquid.)

REASON- States of matter differentiate due to kinetic 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-Both Assertion and Reason are false.

61.) ASSERTION- Forces of attraction between the particles are maximum in solids, intermediate in liquid and minimum in gaseous.

REASON-States of matter differentiate due to there inter particle distances.

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

b.) Both Assertion and Reason are correct, and 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 – The state of matter is interconvertible.

REASON- By molding, any kind of matter can change their state.

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

b.) Both Assertion and Reason are correct, and 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 – The state of matter is interconvertible.

REASON- temperature and pressure the parameter which always responsible for interconversion of state of matter.

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

b.) Both Assertion and Reason are correct, and 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 isthe correct explanation for assertion

64.) ASSERTION-Boiling is the bulk phenomenon.

REASON-Boiling phenomenon is always seen in liquid compound.)

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

b.) Both Assertion and Reason are correct, and 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 notthe correct explanation for assertion

65.) ASSERTION- Evaporation causes cooling.

REASON-temperature and pressure the parameter which always responsible for interconversion of state of matter.

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

b.) Both Assertion and Reason are correct, and 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- Evaporation is bulk phenomenon.

REASON-temperature and pressure the parameter which always responsible for kinetic 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-Both Assertion and Reason are false

67.) ASSERTION-The rate of evaporation depends upon the surface area exposed to the atmosphere, temperature, humidity and wind speed.)

REASON-Theatmosphere, temperature, humidity and wind speed shows rate of sublimation hence it is responsible for interconversion of states.

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

b.) Both Assertion and Reason are correct, and 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.

1.) Assertion: The probability of an event that cannot happen or which is impossible, is equal to zero.

Reason: The probability lies between 0 and 1. Hence, it cannot be negative

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

b)Both Assertion and Reason are false but reason is not correct explanation for assertion.

c)Assertion is correct but reason is false.

d)Both Assertion and reason are false.

Ans: b) both assertion and  reason are correct but  reason is  not correct explanation for assertion.

2.) Assertion: If P(E) = 0.07, then  its  probability of ‘not E’ is 0.93

Reason : P(E) + P(not E) = 1

Since, P(E) = 0.05

 P(not E) = 1 – P(E)

P(not E) = 1 – 0.07P = 0.93

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

b)Both Assertion and Reason are false but reason is not correct explanation for assertion.

c)Assertion is correct but reason is false.

d)Both Assertion and reason are false.

Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.

3.) Assertion: . A bag has 3 red balls and 5 green balls. If we take a ball from the bag, then probability of getting red balls only 3/8.

Reason: Probability of getting red balls = number of red balls/total number of balls

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

b)Both Assertion and Reason are false but reason is not correct explanation for assertion.

c)Assertion is correct but reason is false.

d)Both Assertion and reason are false.

Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.

4.) Assertion: The sum of the probabilities of all the elementary events of an experiment is 1.

Reason: If an event cannot occur, then its probability is 0.

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

b)Both Assertion and Reason are false but reason is not correct explanation for assertion.

c)Assertion is correct but reason is false.

d)Both Assertion and reason are false.

Ans: b) both assertion and reason are correct but reason is not correct explanation for assertion.

5.) Assertion: The probability of getting a bad egg in a lot of 400 is 0.035. The number of bad eggs in the lot is 14.

Reason: . If the probability of an event is p, the probability of its complementary event will be 1-p.

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

b)Both Assertion and Reason are false but reason is not correct explanation for assertion.

c)Assertion is correct but reason is false.

d)Both Assertion and reason are false.

Ans: b) both assertion and reason are correct but reason is not correct explanation for assertion.

6.) Assertion: The probability of getting exactly one head in tossing a pair of coins is 1/2.

Reason: The sample space of two coin tossed is ={HH,TT,HT,TH}=4

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

b)Both Assertion and Reason are false but reason is not correct explanation for assertion.

c)Assertion is correct but reason is false.

d)Both Assertion and reason are false.

Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.7

7.) Assertion: The probability of getting a spade card from a well shuffled deck of 52 cards is 13.

Reason: The probability of getting less than 3 in a single throw of a die is 1/3.

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

b)Both Assertion and Reason are false but reason is not correct explanation for assertion.

c)Assertion is correct but reason is false.

d)Both Assertion and reason are false.

Ans: b) both assertion and reason are correct but reason is not correct explanation for assertion.

8.) Assertion: -0.4 can not be the probability of an event.

Reason: The probability of an event can neither be a negative value, nor it can exceed unity.

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

b)Both Assertion and Reason are false but reason is not correct explanation for assertion.

c)Assertion is correct but reason is false.

d)Both Assertion and reason are false.

Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.

9.) Assertion: Three coins are tossed simultaneously. The probability of getting all heads is 1/8.

Reason: The chance of throwing 5 with an ordinary die is 1/6.

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

b)Both Assertion and Reason are false but reason is not correct explanation for assertion.

c)Assertion is correct but reason is false.

d)Both Assertion and reason are false.

Ans: b) both assertion and reason are correct but reason is not correct explanation for assertion.

1.) Assertion: The runs scored by a batsman in 5 ODIs are 31,97,112, 63, and 12. The standard deviation is 25.79.

Reason: mean = total sum of number in data sets./ total number in data sets.

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

b) Both Assertion and Reason are false but reason is not correct explanation for assertion.

c) Assertion is correct but reason is false.

d) Both Assertion and reason are false.

Ans: a) both assertion and  reason are correct but  reason is  not correct explanation for assertion.

 2.) Assertion: the mode of the call received on 7 consecutive day 11,13,13,17,19,23,25 is 13.

Reason: Mode is the value that appears most frequent;

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

b)Both Assertion and Reason are false but reason is not correct explanation for assertion.

c)Assertion is correct but reason is false.

d)Both Assertion and reason are false.

Ans: a) both assertion and  reason are correct but  reason is  not correct explanation for assertion.

3.) Assertion: Frequency is the number of times a particular observation occurs in data.

Reason: Data can be grouped into class intervals such that all observations in that range belong to that class.

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

b) Both Assertion and Reason are false but reason is not correct explanation for assertion.

c) Assertion is correct but reason is false.

d) Both Assertion and reason are false.

Ans: b) both assertion and reason are correct but reason is not correct explanation for assertion.

4.) Assertion: Class width = upper class limit – lower class limit

Reason: Class mark =(Upper Class Limit+ Lower Class Limit)/2

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

b) Both Assertion and Reason are false but reason is not correct explanation for assertion.

c) Assertion is correct but reason is false.

d) Both Assertion and reason are false.

Ans: b) both assertion and reason are correct but reason is not correct explanation for assertion.

1.) Assertion: If diameter of a sphere is decreased by 25%, then its curved surface area is decreased by 43.75%.

Reason : Curved surface area is increased when diameter decreases

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: c) Assertion is correct but reason is false

2) Assertion: The volume and surface Area of a sphere are related to each other by radius.

Reason : Relation between Surface Area S and Volume V is `S^(3) = 36 pi V^(2)`.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

3) Assertion: The external dimensions of a wooden box are 18 cm, 10 cm and 6 cm respectively and thickness of the wood is 15 mm, then the internal volume is 765 cm3.

Reason : If external dimensions of a rectangular box be l, b and h and the thickness of its sides be x , then its internal volume is (l – 2x) (b – 2x) (h – 2x)

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

4) Assertion: The radius of a cylinder is doubled and its height remaining same. Then its volume will be increased four times.

Reason (R): Volume of the cylinder is πr^2h where, r = radius of base and h = height of the cylinder.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

5) Assertion: The surface area of a sphere is 2464 . Then its volume is 11498(2/3)cm^3

Reason (R): The volume of a sphere of radius 4/3πr^3 is , and total surface area is 4πr^2

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: b)  both Assertion and reason are correct but reason is not correct explanation for Assertion

6) Assertion: Volume of sphere=4/3πr^3 and surface area of sphere=4πr^2

Reason: if the volume of two sphere are in the ratio27:8 then the surface area are in the ratio 3:2

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: c) assertion is correct but reason is false

7) Assertion: total surface area of cylinder having radius of the base 14cm and height 30 cm is 3872cm^2

Reason: if r be the radius and h be the height of the cylinder then the total surface area= (2πrh+2πr^2)

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion.

8) Assertion: the slant height of the frustum of a cone is 5 cm and the difference between the radii of its two circular ends is 4 cm than the height of the frustum is 3 cm

Reason: slant height of frustum of cone is given by l= √(R-r)^2+h^2

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion.

9) Assertion: if r be the radius and h be the slant height of cone then the slant height =√(h^2+r^2)

Reason: if the height of cone is 24 cm and diameter of base is 14cm then the slant height of cone is 15 cm

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: c)  Assertion is  correct but reason is  false

10) Assertion: total surface area of cuboid is 2(lb+bh+lh)

Reason: two identical solid cube of side 5 cm are joined end to end then the total surface area of the resulting cuboid is 300 cm^2

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: c)  Assertion is  correct but reason is  false

11) Assertion: volumes of cone =1/3πr^2h

Reason: the radii of two cone are in the ratio 2:3 and their volumes in the ratio 1:3 then the ratio of their height is 3:2

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: c)  Assertion is  correct but reason is  false

12) Assertion: if a ball is in the shape of a sphere has a surface area of 221.76cm^2 then  it’s diameter is 8.4 cm

Reason: if the radius of the sphere be r then the surface area, S=4πr^2

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

13) Assertion: the number of cins 1.75 cm in diameter and 2mm thick is formed from a melted cuboid 10cm*5.5cm*3.5cm is 400

Reason: volume of cylinder= πr^2h cubic units and area of cuboid =(l*b*h) cubic units

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

14) Assertion: number of spherical balls that can be made out of a solid cube lead whose edge 44 cm each ball being 4 cm in diameter is 2541

Reason: number of balls = volume of one ball/ volume of lead

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: c) Assertion is correct but reason is false

15) Assertion: volume of sphere =4/3πr^3 and it’s surface area 4πr^2

Reason: if the volumes of two spheres are in the ratio 27:8 then their surface area are in ratio 9:4

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

16) Assertion: total surface area of hemisphere is 3πr^2

Reason: the outer surface of hemisphere of radius 7cm is to be painted the total cost of painting atvrs 5 per cm^2is RS 2300

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: c) Assertion is correct but reason is false

17) Assertion: the curved surface area of a cone base radius 3 cm and height 4cm is 15πcm^2

Reason: curved surface area  of a cone = πr^2h

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: c)Assertion is correct but reason is false.

18) Assertion: 5 number of solid sphere each of diameter 6 cm that could be moulded to form a solid metallic cylinder of height 45 cm and diameter 4 cm

Reason: number of solid sphere = volume of cylinder / volume of sphere.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

19) Assertion: two circular cylinder of equal volumes have their height in the ratio 1:2 then ratio of their radii is √2:1

Reason. releation between the height and radius of volume is inversely proportional.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

20) Assertion: the number of coins 1.75 cm  in diameter 2 mm thick from a melted cuboid (10cm*5.5cm*3.5cm) is500

Reason: volume of cylinder base and radius r and height h is given by V= πr^2hcubic units

and volume of cuboid=(l+b+h)

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertionc) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: d) both Assertion and reason are false

21) Assertion: a closed cylindrical tank of radius 7  m and height 3 m is made from metal 440m^2 sheet of  metal is required.

Reason: surface area of cylinder= 2πr(r+h)

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

22) Assertion: the volume and surface area of a sphere are related to each other by radius.

Reason: the relation between the surface area and volume is S^3=36V^2

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

23) Assertion: the volume of a solid is defined as the space occupied by the solid shape in 3-dimesional region

Reason: the amount of water the glass can hold is called volume of glass

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

24) Assertion: in a cylinder radius is doubled and height is halved  curved surface area will be same

Reason : curved surface area of cylinder= 2πRH

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

25) Assertion: if a ball shape of a sphere has surface area 221.76cm^2 then it’s diameter is 8.4cm

Reason: if the radius of sphere be r then the surface area , S=4πr^2

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

26) Assertion: curved surface of cylinder= 2πrh

Reason:  if the curved surface ofright circular cylinder  1760cm^2 and it’s radius is 21cm then it’s height is 80/3 cm

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: c) Assertionis correct but reason is false

27) Assertion: 220cm^2 the curved surface area of a right circular cone whose slant height

is 10 cm and base radius is 7 cm.

Reason: Curved surface area = πrl

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

28) Assertion: The point of intersection of the 3 edges of a cuboid is called the vertex of a cuboid

Reason:  a cuboid has 8 vertices.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: b) both Assertion and reason are correct but reason is not correct explanation Assertion

29) Assertion: The volume of a solid is equal to the product of the base area and its height

Reason: Volume = (Length × Breadth × Height)

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans:a) both Assertion and reason are correct and reason is correct explanation for Assertion

30) Assertion: a cone is solid figure

Reason: a cone is generated when rectangular sheet is rotated about its axis

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: c) Assertion is true but reason is false.

31) Assertion: the radii of two cones are in the ratio 2:3 and their height are in ratio 7:3 the ratio of their volumes is 28:27

Reason: volume of cone=1/2πr^2h

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: c) Assertion is true but reason is false

32) Assertion: √1400 is the maximum length of rod that can be kept in cuboidal box of sides 30 cm ,20 cm and 10 cm

Reason: diagonal is the longest length in the cuboid

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

33) Assertion: the surface area of cube whose edge equal S to 3 cm is 54sq.cm

Reason: surface area of cube

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

34) Assertion: the surface area of cuboid shaped box having  length80cm,breadth40cm,height20cm is 11200

Reason: surface are of box= 2(ll+bb+hh)

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: c) Assertion is true but reason is false

35) Assertion: if the radius of cylinder is 4 cm and height 10 cm then the total surface area of cylinder is 352sq.cm

Reason: total surface area of cylinder= 2πr(r+h)

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

36) Assertion: the curved surface area of right circular  cylinder  is 4.4 sq.cm the radius of base is O.7 cm the height of cylinder will be 5 cm

Reason: curved surface area of cylinder 2(πr+h)

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: d) both Assertion and reason are false

37) Assertion: the radius of a sphere is 2r then it’s volume will be (32/3)πr^3

Reason: volume of sphere 4/3 πr^3

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

38) Assertion: the radius of hemispherical balloon increase from 6 cm to 12 cm as air is being pumped into it the ratio of the surfaces areas of balloon in two cases is 1:4

Reason: total surface area of hemisphere=3πr^2

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion.

39) Assertion: the lateral surface area of a cube is 256 m^2:the volume of the cube is 512m^3

Reason: lateral surface area of cube = 4*side^2

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

40) Assertion: a cylinder and right circular cone are having the same base and same height the volume of cylinder is three times the volume of cone

Reason: if the radius of cylinder is doubled and height is halved the volume will be doubled

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: b) both Assertion and reason are correct but reason is not correct explanation for Assertion

41) Assertion: the total surface area of a cone 968 sq.units with radius 14 units and slant height 8 units.

Reason: surface area of cone = πr^2l

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: c)  Assertion is correct but reason is false

42) Assertion: the lateral surface area of a right cone is 62.82 if the radius is 4 cm and the slant height is 5 cm.

Reason: lateral surface area of cone = πrl

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

43) Assertion: 550 cm^3 is the volume of cylindrical shape of water container that has height of 7 cm and diameter of 10 cm

Reason: volume of cylinder= πr^2h

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: a) both Assertion and reason are correct and reason is correct explanation for Assertion

44) Assertion: the perpendicular distance between two bases is the height of cylinder

Reason: the line segment joining the centre of two bases is the axis of cylinder

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: b) both Assertion and reason are correct but reason is not correct explanation for Assertion

45) Assertion: if the value of the side of cube is10 cm then 500vm^2 and  3000 cm^3 its surface area and volume.

Reason: surface area and volume of cube are always equal

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: d) both Assertion and reason are false

46) Assertion: volume of cuboid is defined as the amount of space occupied by the walls of cuboid in three dimensional space

Reason: volume of cuboid is the product of length ,width ,height

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: b) both Assertion and reason are correct but reason is not correct explanation for assertion

47) Assertion: a sphere is a symmetrical object

Reason: a sphere had an only a curved surface no flat surface no edge and no vertices

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: b) both Assertion and reason are correct but reason is not correct explanation for Assertion

48) Assertion: sphere has constant mean curvature

Reason: sphere has constant width and circumference

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: b) both Assertion and reason are correct but reason is not correct explanation for assertion

49) Assertion: circle ,rectangles ,square and triangles arevplane figure

Reason: plane figure posses perimeter and area

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: b) both Assertion and reason are correct but reason is not correct explanation for Assertion

50) Assertion: solid figures are three dimensional figures

Reason: solid figures possess volume and surface area.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is correct but reason is false

d) both Assertions and reason are false

Ans: b) both Assertion and reason are correct but reason is not correct explanation for assertion

1) Assertion: the area of a triangle 8966.56 whose sides are respectively 150 cm, 120 cm and 200 cm.

Reason: heron’s formula=√s(s-a)(s-b)(s-c)

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 not correct explanation for Assertion

2) Assertion: the area of a triangle is 6 cm^2  whose sides are 3 cm, 4 cm and 5 cm respectively.

Reason: area of triangle= √s(s-a)(s-b)(s-c)

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for Assertion

3) Assertion: the area of an equilateral triangle having each side 4 cm is 4√3 cm^2

Reason: Area of an equilateral triangle = ( √3/4 ) × a²

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for Assertion

4) Assertion: area of triangle= √s(s-a)(s-b)(s-c)

Reason: s = (a+b+c)/2

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for Assertion

5) Assertion: perimeter of triangle = (a+b+c)/2

Reason: If the sides of the triangle are 30m, 24m and 22 m then it’s perimeter is 76 m

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for Assertion

6) Assertion: if 2S=( a+b+c)/2 where a,b,c are the sides of triangle then area =√s(s-a)(s-b)(s-c)

Reason: the sides of triangle are 3cm,4cm,5cm it’s area is 6cm^2

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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: the side of equilateral triangle is 6 cm then the area of triangle is  9 √3 cm^2

Reason: all the side of equilateral triangle are equal

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for assertion.

8) Assertion: The right angled triangle if hypotenus is 5√2cm then  other two side equal to 5 cm each

Reason: in right angled triangle  base^2+perpendicular ^2=hypotenus ^2

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for Assertion

9) Assertion: the height of equilateral triangle is √ 3/2a

Reason: the side of equilateral triangle  is 6 cm then the height of triangle is 9 cm

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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: the height the triangle is 18 cm and its area is 72cm^2 and it’s base is 8 cm

Reason: area of triangle= 1/2*base*height

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for Assertion

11) Assertion:  The sides of a triangle are 3 cm, 4 cm and 5 cm. Its area is 9√3cm^2

Reason : If 2s = (a + b + c ) , where a , b, c are the sides of a triangle, then area = √(s – a) (s–b)(s– c)

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 : The sides of a triangle are in the ratio of 25 :14 :12 and its perimeter is 510 m. Then the greatest side is 250 cm.

Reason : Perimeter of a triangle = a + b + c , where a,b,c are sides of a triangle.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for Assertion

13 )Assertion: Semi perimeter of a equilateral  triangle is s =3 a /2, where, a, are side of triangle.

Reason: If the area of an equilateral triangle is81√3 cm2, then the semi perimeter of triangle is 20cm.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not correct explanation for Assertion

c) Assertion is true but reason is false.

d) both Assertion and reason are false.

Ans: c) Assertion is correct but reason is false

14) Assertion: The sides of a triangle are in the atio of25 : 14 : 12 and its perimeter is 510 cm. Then the area of the triangle is 4449.08 cm2

Reason: Perimeter of a triangle = a + b + c, where a ,b, c are sides of a triangle.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for Assertion

15) Assertion: the side of an equilateral triangle is 20cm then the height  is 20√3/3 cm

Reason: the height of an equilateral triangle is √3/2a

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for Assertion

16) Assertion: the perimeter of triangle is 36 cm and it’s side are in the ratio a:b:c= 3: 4:5 then a= 9 cm,b=12cm,c=15cm

Reason: perimeter of triangle = sum of all side of triangle

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for Assertion

17) Assertion: Area of rhombus whose side is 20 cm and one diagonal is 24 cmis 384cm^2

Reason: all sides of rhombus are equal

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for Assertion

1.) Assertion: a, b and c are the lengths of three sides of a triangle, then a+b > c

Reason: The sum of two sides of a triangle is always greater than the third side.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for Assertion.

2) Assertion: The side lengths 4cm, 4cm and 4cm can be sides of equilateral triangle

Reason: : Equilateral triangle has all its three sides equal

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for Assertion.

3) Assertion: To construct an angle of 60 degrees, we need to draw first a ray

Reason: To construct an angle of 60 degrees we need to start at the initial point of a ray.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for Assertion.

4) Assertion: The construction of a triangle ABC in which AB = 4 cm, ∠A = 60° is not possible when the difference of BC and AC is equal to 4.5

Reason: the difference of any two sides of a triangle cannot be greater than the third side.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for Assertion.

5) Assertion: The side length of 2 cm, 3 cm, and 4 cm can be the sides of Scalene triangle

Reason: the sides of a scalene triangle, as all the sides have different measurements.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 correct explanation for Assertion.

6) Assertion: The internal and external bisectors of an angle forms a right angle

Reason: the bisector always divides an angle in two equal parts.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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: bisector of angle divide the angle in two equal parts.

Reason: Every angle has an angle bisector.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 but reason is not correct explanation for the Assertion

8) Assertion: All the points of angle bisector are equidistant from both the arms of the angle

Reason: An angle bisector can be drawn to any angle, such as acute, obtuse, or right angle

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 but reason is not correct explanation for the Assertion

9) Assertion: The perpendicular bisector of the line is Perpendicular to the line

Reason: Perpendicular bisector passes through the midpoint of a line segment.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 but reason is not correct explanation for the Assertion

10) Assertion: The starting point of the ray is called vertex

Reason: A ray does not have a height or width

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 but reason is not correct explanation for the Assertion

11) Assertion: When two lines crosses each other at a common point then this lines are called intersecting line.

Reason: Intersecting lines meet at a single point, they can meet at more than one point.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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: Intersecting lines meet at a single point, they cannot meet at more than one point.

Reason: When two lines crosses each other at a common point then this lines are called intersecting line

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 but reason is not correct explanation for Assertion

13) Assertion: When two straight lines intersect each other at a right angle in a common point then that lines are called as perpendicular line

Reason: The angle between any two perpendicular lines is always equal to 90. °

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 but reason is not correct explanation for Assertion

14) Assertion: The lines which do not intersect each other and can be extended to infinity in a plane then this lines are called as parallel lines.

Reason: The parallel lines meet at the point of infinity.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 but reason is not correct explanation for Assertion

15) Assertion: The lines which are not parallel and also does not intersect are called as skew line.

Reason: Lines that are non-intersecting, non-parallel, and non-coplanar are skew lines.

a) both Assertion and reason are correct and reason is correct explanation for Assertion

b) both Assertion and reason are correct but reason is not 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 but reason is not correct explanation for Assertion

1) Assertion: AB and CD are two parallel chords of a circle whose diameter is AC. Then AB ≠ CD.

Reason : Perpendicular from the centre of a circle does not bisects the chord.

a)both Assertion and Reason are correct  and Reason is the correct explanation of Assertion.

(b) Assertion and Reason both are correct  but Reason is not the correct explanation of Assertion.

(c) Assertion is correct  but Reason is false

(d)  both assertion and reason are wrong.

Ans: d) both assertion and reason are false

2.) Assertion: Angles in the same segment of a circle are equal.

Reason: In cyclic quadrilateral, opposite angles are supplementary.

a)both Assertion and Reason are correct  and Reason is the correct explanation of Assertion.

(b) Assertion and Reason both are correct  but Reason is not the correct explanation of Assertion.

(c) Assertion is correct  but Reason is false

(d)  both assertion and reason are wrong.

Ans: b)both assertion and reason are correct and reason is correct explanation for assertion.

3 ) Assertion: Perpendicular bisectors of two chords of a circle intersect at its centre.

Reason: : A line drawn through the centre of a circle to bisect a chord is perpendicular to the chord.

a)both Assertion and Reason are correct  and Reason is the correct explanation of Assertion.

(b) Assertion and Reason both are correct  but Reason is not the correct explanation of Assertion.

(c) Assertion is correct  but Reason is false

(d)  both assertion and reason are wrong.

Ans: b) both assertion and reason are correct and reason is correct explanation for assertion.

4) Assertion: If a sector of a circle of diameter 21 cm subtends an angle of 120° at the centre, then its area is 85.5cm^2

Reason:. In a circle of radius 21 cm, an arc substends an angle

of 60° the centre the length of the arc is 22 cm.

a)both Assertion and Reason are correct  and Reason is the correct explanation of Assertion.

(b) Assertion and Reason both are correct  but Reason is not the correct explanation of Assertion.

(c) Assertion is correct  but Reason is false

(d)  both assertion and reason are wrong.

Ans: b) both assertion and reason are correct and reason is correct explanation for assertion.

5) Assertion: Area of a segment of a circle is less than the area of its corresponding sector.

Reason: The area of the circle inscribed in a square of side a cm, πa^2 cm^2.

a)both Assertion and Reason are correct  and Reason is the correct explanation of Assertion.

(b) Assertion and Reason both are correct  but Reason is not the correct explanation of Assertion.

(c) Assertion is correct  but Reason is false

(d)  both assertion and reason are wrong.

Ans: d) both assertion and reason are false.

6) Assertion: Perimeter of a semi circle , (πr+d) units.

Reason: Area of circle is πr^2

a)both Assertion and Reason are correct  and Reason is the correct explanation of Assertion.

(b) Assertion and Reason both are correct  but Reason is not the correct explanation of Assertion.

(c) Assertion is correct  but Reason is false

(d)  both assertion and reason are wrong.

Ans: b) both assertion and reason are correct and reason is correct explanation for assertion.

7) Assertion: If the circumference of a circle is 88 cm, then its radius is 14 cm.

Reason: 2π r is circumference of a circle.

a)both Assertion and Reason are correct  and Reason is the correct explanation of Assertion.

(b) Assertion and Reason both are correct  but Reason is not the correct explanation of Assertion.

(c) Assertion is correct  but Reason is false

(d)  both assertion and reason are wrong.

Ans: a) both assertion and reason are correct and reason is correct explanation for assertion.

8) Assertion: measure of an semicircle of an angle is 90°

Reason: Concentric circles are circles having same centre.

a)both Assertion and Reason are correct  and Reason is the correct explanation of Assertion.

(b) Assertion and Reason both are correct  but Reason is not the correct explanation of Assertion.

(c) Assertion is correct  but Reason is false

(d)  both assertion and reason are wrong.

Ans: b) both assertion and reason are correct but  reason is not correct explanation for assertion.