Chapter 2 Is Matter Around Us Pure? Assertation & Reasoning Questions Class 9th Science

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.

Read More

Chapter 1 Matter in Our Surroundings Assertation & Reasoning Questions Class 9th Science

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.

  1. 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.

Read More

Chapter 15 Probability Assertation & Reasoning Questions Class 9th Mathematics

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.

Read More

Chapter 14 Statistics Assertation & Reasoning Questions Class 9th Mathematics

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.

Read More

Chapter 13 Surface Areas and Volumes Assertation & Reasoning Questions Class 9th Mathematics

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

Read More

Chapter 12 Heron’s Formula Assertation & Reasoning Questions Class 9th Mathematics

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

Read More

Chapter 11 Constructions Assertation & Reasoning Questions Class 9th Mathematics

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

Read More

Chapter 10 Circles Assertation & Reasoning Questions Class 9th Mathematics

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.

Read More

Chapter 9 Areas of Parallelograms and Triangles Assertation & Reasoning Questions Class 9th Mathematics

1) Assertion: The area of a parallelogram and a rectangle having a common base and between same parallels are equal.

Reason: Another name of a rectangle is a parallelogram.

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 and 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 parallelogram on the same and between the same parallel are equal in area.

Reason: The areas of parallelogram between the same parallels 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 correct and reason is false

d) both Assertion and reason are false

Ans: c) assertion  is true but reason is false

3) Assertion: Congruent triangles have equal areas but converse is not true

Reason:If two triangles area are same areas, they will be congruent

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 and reason is false

d) both Assertion and reason are false

Ans: c) Assertion is true but reason is false

4) Assertion: Two triangles having the same base (or equal bases) and equal areas lie between the same parallels

Reason: Triangle area is (1/2) X base X height. With same base and area, height should be equivalent, which means they lie on same parallel

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 and 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 diagonals of a ||gm divide it into four triangle of equal area.

 Reason : A diagonal of a ||gm divides it into two triangle of equal 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 and 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 area of a trapezium whose parallel sides measure 25 cm and 15 cm respectively and the distance between them is 6 cm, is 120 `cm^(2)`

Reason: area of trapezium=1/2(a+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 Assertion

c) Assertion is correct and 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) Assertion: The perimeter of a parallelogram is the total distance enclosed by its boundary.

Reason: The perimeter of a parallelogram depends on the length of its four sides.

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 and 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: The Sum of adjacent angles of a parallelogram is equal to 180 degrees

Reason: The opposite sides of a parallelogram are equal in length, and the opposite angles are equal in measure.

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 and 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

9) Assertion: square is a parallelogram

Reason: the opposite sides are parallel to each other, and the diagonals of the square bisect each other.

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 and reason is false

d) both Assertion and reason are false

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

10) Assertion: the area of a parallelogram  is 40 cm whose base is 5 cm and height is 8 cm.

 Reason: area of parallogram = 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 correct and 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: In figure, E is any point on median AD of a ∆ABC. Then arc (ABE) = arc (ACE).

Reason: A median divides the triangle into two triangles of equal areas

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 and 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

12)  Assertion: the diagonals of a parallelogram divide it into four triangles of equal area.

Reason:  sum of the squares of the diagonals of a parallelogram is equal to the sum of the squares of its sides.

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 and reason is false

d) both Assertion and reason are false

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

13) Assertion: In the given figure, ABCD is parallelogram, AE ⊥ DC and CF ⊥ AD. If AB = 16 cm, AE = 8 cm and CF = 10 cm, AD=10.8

Reason: opposite side of parallogram are unequal

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 and reason is false

d) both Assertion and reason are false

Ans:c) Assertion is true but reason is false

14) Assertion: If E, F, G and H are respectively the mid-points of the sides of a parallelogram ABCD then ar (EFGH) =1/2ar (ABCD

 Reason: opposite side of parallogram are equal and parallel

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 and 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: two congruent figure have equal area

Reason: two equal area figure are always congruent

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 and reason is false

d) both Assertion and reason are false

Ans:c) Assertion is true but reason is false

16) Assertion: product of base and corresponding altitude is known as area of parallogram

 Reason: arc of parallogram is product of diagonal

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 and reason is false

d) both Assertion and reason are false

Ans:c) Assertion is correct but reason is false

17) Assertion: Parallelogram having the same base and equal areas lie between the different parallels

Reason: If parallelogram and triangle are on the same base and between the same parallels then area of triangle is half of the area of parallogram

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 and reason is false

d) both Assertion and reason are false

Ans: d) both Assertion and reason are false

18) Assertion: Opposite side of parallogram are always parallel

 Reason:  ‘parallel lines’ means parallel lines are the two lines that never meet.

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 and 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

19) Assertion: Diagonals of a parallelogram are not bisect each other.

Reason: the sum of angle of parallogram is 180°

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 and reason is false

d) both Assertion and reason are false

Ans: d) both Assertion and reason are false

20) Assertion: The base and the corresponding altitude of a parallelogram are 10 cm and 3.5 cm respectively. The area of the parallelogram is 35

Reason: area of parallogram = 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 correct and 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

21) Assertion: If a triangle and parallelogram are on the same base and between the same parallels,

Reason: the area of the triangle is equal to half the area of a parallelogram

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 and 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

22) Assertion: In the parallelogram ABCD, then the value of x is 130°

Reason: Opposite angles are equal, and adjacent angles must sum to 180°.

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 and 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

23) Assertion: the perimeter of this parallelogram is 38+8√2 cm

Reason: The formula for the perimeter of a parallelogram is:

P = 2(side) + 2(base).

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 and 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

24) Assertion: the measures of ∠C and ∠B is  70°,110°in the parallelogram ABCD.

Reason: opposite angle of parallogram are not congruent

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 and reason is false

d) both Assertion and reason are false

Ans:c) Assertion is correct but reason is false

25) Assertion: In the adjoining figure, ABCD is a parallelogram, AO and BO are the bisectors of ∠A and ∠B respectively. Then  that ∠AOB = 90°.

Reason: the sum of two adjacent angles of a parallelogram is 180°

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 and 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

26) Assertion:In the parallelogram PQRS, Pq = 6 cm and SR : RQ = 2 : 1.  18 cm is  the perimeter of the parallelogram.

Reason:  perimeter of parallogram = 2(a+b)

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 and 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

27) Assertion:

is a acute angle triangle type

Reason: A triangle that has all three angles less than 90° is an acute angle 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 correct and 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

28) Assertion:

is aright angled triangle

Reason: A triangle that has all three angles less than 90° is an acute angle 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 correct and 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

29) Assertion: The other two angles of a right-angle triangle are acute angles.

Reason:measurement of right angle is 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 correct and 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

30) Assertion: it is scalene type of a  triangle

Reason: A triangle that has all three sides of different lengths is a scalene 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 correct and 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

31) Assertion: The sum of all interior angles of any triangle is equal to 180°

Reason: The triangle have three interior 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 correct and 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

32) Assertion: The sum of the lengths of any two sides of a triangle is always greater than the length of the third side

Reason: the difference between the lengths of any two sides of a triangle is always less than the length of 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 correct and 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

33) Assertion: Sum of length of any two sides of a triangle is always greater than the third side.

Reason: Sum of length of any two sides of a triangle is always equal to 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 correct and reason is false

d) both Assertion and reason are false

Ans:c) Assertion is true but reason are false

34) Assertion: A right-angled triangle can be a scalene triangle or an isosceles triangle.

Reason: It depends on whether the lengths of the perpendicular and the base 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 correct and reason is false

d) both Assertion and reason are false

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

35) Assertion:in  any triangle, the three medians meet at a point.

Reason:  The point of intersection of the medians in a triangle is called the centroid of the 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 correct and 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

36) Assertion: the triangle is acute, obtuse, or right-angled, the incentre always lies inside a triangle.

Reason: The point of intersection of the internal bisectors of the three angels in a triangle is called the incentre 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 correct and 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

37) Assertion:For an acute-angled triangle, the circumcentre always lies inside the triangle

Reason: the angle whose measurement less than 90° and greater than 0° is known as acute 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 correct and 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

38) Assertion:An equilateral triangle has 3 equal angles that are 60° each.

Reason: equilateral triangle is a triangle in which all three sides have the same length.

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 and 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

39) Assertion: A triangle has three straight sides that connect.

Reason:The length of the sides can vary but the length of the largest side can’t be equal or greater to the sum of the other two sides.

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 and 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

40) Assertion:The two angles that are equal in an isosceles triangle are the two base angles.

Reason: An isosceles triangle has two equal sides that meet at a 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 correct and 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

41) Assertion: the value of x is 60° if PQRS is a parallelogram.

Reason: opposite angle of parallogram 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 correct and 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

42) Assertion: Given PQRS is a parallelogram, 1.2 is the ratio of OQ/OR if PR = 10cm and QS = 12cm

 Reason: the diagonal of parallogram are bisect each other

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 and 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

43) Assertion:  angle bisector of a parallelogram form a rectangle

Reason: every parallelogram is a rectangle

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 and reason is false

d) both Assertion and reason are false

Ans:c) Assertion is correct but reason is false

Read More

Chapter 8 Quadrilaterals Assertation & Reasoning Questions Class 9th Mathematics

1) Assertion: The angles of a quadrilateral are x°, (x – 10)°, (x + 30)° and (2x)°, the smallest angle is equal to 58°

Reason : Sum of the angles of a quadrilateral is 360°

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 Assertion and reason are false.

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

2) Assertion: If the diagonals of a parallelogram ABCD are equal, then ∠ABC = 90°

Reason : If the diagonals of a parallelogram are equal, it becomes a rectangle.

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 Assertion and reason are false.

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

3) Assertion: A parallelogram consists of two congruent triangles.

Reason : Diagonal of a parallelogram divides it into two congruent triangles.

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 Assertion and reason are false.

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

4) Assertion: ABCD is a square. AC and BD intersect at O. The measure of ∠ABC = 900.

Reason : Diagonals of a square bisect each other at right angles.

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 Assertion and reason are false.

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

5)  Assertion: ABCD and PQRC are rectangles and Q is a midpoint of AC . Then DP = PC.

Reason : The line segment joining the midpoint of any two sides of a triangle is parallel to the third side and equal to half of it.

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 Assertion and reason are false.

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

6) Assertion: In ΔABC , median AD is produced to X such that AD =DX . Then ABXC is a parallelogram.

Reason : Diagonals AX and BC bisect each other at right angles

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 Assertion and reason are false.

Ans: c) Assertion is true but reason is false

7) Assertion: The consecutive sides of a quadrilateral have one common point.

Reason : The opposite sides of a quadrilateral have two common 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 correct but reason is false.

d) both Assertion and reason are false.

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

8) Assertion: Two opposite angles of a parallelogram are (3x-2)°and (50-x)° The measure of one of the angle is 37°

Reason : Opposite angles of a parallelogram 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 correct but reason is false.

d) both Assertion and reason are false.

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

9) Assertion: If the angles of a quadrilateral are in the ratio 2 : 3 : 7 : 6, then the measure of angles are 40°, 60°, 140°, 120°, respectively.

Reason : The sum of the angles of a quadrilateral is 360°

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 Assertion and reason are false.

Ans: a) Assertion is true but reason is false

10) Assertion: In ΔABC , E and F are the midpoints of AC and AB respectively. The altitude AP at BC intersects FE at Q. Then, AQ = QP.

Reason : Q is the midpoint of AP

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 Assertion and reason are false.

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

11) Assertion: every square is a rectangle

Reason: every rectangle is a square

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 Assertion and reason are false.

Ans: c) Assertion is true but reason is false

12) Assertion: every square is rhombus

Reason: every rhombus is a square.

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 Assertion and reason are false.

Ans: c) Assertion is true but reason is false

13) Assertion: all parallogram are quadrilateral

Reason: all parallogram are rectangle

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 Assertion and reason are false.

Ans: c) Assertion is true but reason is false

14) Assertion: every trapazoid is a parallelogram.

Reason: a trapazoid is a quadrilateral whose opposite side are parallel

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 Assertion and reason are false.

Ans:d) both Assertion and reason are false.

15) Assertion: all quadrilateral are not parallelogram

Reason: quadrilateral that don’t  have parallel 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 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

16) Assertion: every square is a rectangle

Reason: because it is a quadrilateral with all four angles right angles.

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 Assertion and reason are false.

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

17) Assertion: every square is a rhombus

Reason: it has four equal-length sides and goes above and beyond that to also have four 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 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

18) Assertion: the value of xin given figure is 140°

Reason: sum of angles of quadrilateral is 360°

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 Assertion and reason are false.

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

19) Assertion: all the four angles of a quadrilateral cannot be obtuse.

Reason: because obtuse angle is grater than 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 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

20) Assertion: kite is not rhombus

Reason: because only one adjacent pair of side are equal and only one pair of opposite angle 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 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

21) Assertion: adjacent side of rhombus are equal

Reason: the opposite side 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 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

22) Assertion: a parallogram whose adjacent are equal is known  as rhombus

Reason: the diagonas of parallogram are not bisect each other

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 Assertion and reason are false.

Ans:c) Assertion is true but reason is false

23) Assertion: a geometric shape whose four side four angle and four vertices is known as quadrilateral

Reason: rhombus is a qudrilateral

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 Assertion and reason are false.

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

24) Assertion: the quadrilateral whose diagonal are bisect each other at the right angle is known as rhombus

Reason: opposite vertices of a rhombus are joined, they form the diagonals of a rhombus.

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 Assertion and reason are false.

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

25) Assertion:  the area of a rhombus is 24cm^2 having diagonals equal to 6 cm and 8 cm.

Reason: area of rhombus =(d1*d2)/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 Assertion and reason are false.

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

26) Assertion: rectangle is equiangular

Reason: all angles of rectangle 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 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

27) Assertion: The interior angle of a rectangle at each vertex is 90°.

Reason: The sum of all interior angles is 360°.

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 Assertion and reason are false.

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

28) Assertion: A rectangle is 6 m wide and 3 m high, 18m^2 is its Area

Reason: area of rectangle= leangth*breadth

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 Assertion and reason are false.

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

29) Assertion: A rectangle is 12 cm long and 5 cm tall, 34cm is its Perimeter?

Reason: perimeter of rectangle =2*(leangth*breadth)

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 Assertion and reason are false.

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

30) Assertion: A rectangle is 12 cm wide, and 5 cm tall, 13cm is the length of a diagonal

Reason: leangth of diagonal of rectangle I= √(a^2+b^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 Assertion and reason are false.

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

31) Assertion: 1.44 sq.m the area of a square clipboard whose side measures 120 cm.

Reason: area of square= 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 Assertion and reason are false.

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

32) Assertion: ABCD is a rhombus such that ∠ABC = 40°, then ∠ADC is equal to40°

Reason: in rhombus opposite angles 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 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

33) Assertion: diagonal of parallogram are divide into two congruent triangle

Reason: in a parallelogram opposite angle are not 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 Assertion and reason are false.

Ans:c) Assertion is correct but reason is fslse

34) Assertion: all quadrilateral are not rectangle

Reason: all quadrilateral are parallogram

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 Assertion and reason are false.

Ans:d) both Assertion and reason are false

35) Assertion: diagonal of trapezium are equal

Reason: diagonal of trapezium are perpendicular

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 Assertion and reason are false.

Ans:d) both Assertion and reason are false

36) Assertion: If one angle of a parallelogram is twice of its adjacent angle, then  the angles of the parallelogram are 120°,60°,120°,and 60°

Reason: in a parallelogram sum of adjacent angle is 180°

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 Assertion and reason are false.

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

37) Assertion: triangle is not quadrilateral

Reason: quadrilateral is a polygon it has four 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 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

38) Assertion: rectangle have leangth and breadth

Reason: the largest side of rectangle is breadth

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 Assertion and reason are false.

Ans:c) Assertion is true but reason is false

39) Assertion: The diagonals in a square bisect each other at 90°

Reason: The diagonals in a square divide the square into four congruent equilateral right-angles triangles

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 Assertion and reason are false.

Ans:c) Assertion is true but reason is false

Read More