Assertion and Reasoning Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to Assertion and Reasoning. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 1 - Assertion (A): State of the metals deep inside the earth surface is in liquid state.

Reason(R): Earth absorbs the light rays of sun.

A - Both A and R are true and R is the correct explanation of A.

B - Both A and R are true but R is not the correct explanation of A.

C - A is true but R is false.

D - A is false but R is true.

E - Both A and R are false.

Answer : C

Explanation

Due to the effect of high pressure and temperature, the metals get converted into liquid state but the earth surface do not absorb sun rays, instead it reflects them.

Answer : A

Explanation

Due to red colour pigment of the haemoglobin, the blood is red in colour.

Q 3 - Assertion (A): Fertility of the soil can be brought back to life through legume.

Reason(R): The microorganisms present in the root of the legumes help in fixing the nitrogen level in atmosphere.

A - Both A and R are true and R is the correct explanation of A.

B - Both A and R are true but R is not the correct explanation of A.

C - A is true but R is false.

D - A is false but R is true.

E - Both A and R are false.

Answer : A

Explanation

The microorganisms present in the root convert the nitrogen into nitrogenous compound and that is very helpful in reviving the fertility of the soil.

Q 4 - Assertion (A): The material experiences a decrease in its weight when it is dipped inside the fluid.

Reason(R): Due to the higher weight of the displaced fluid, the weight of the material decreases.

A - Both A and R are true and R is the correct explanation of A.

B - Both A and R are true but R is not the correct explanation of A.

C - A is true but R is false.

D - A is false but R is true.

E - Both A and R are false.

Answer : C

Explanation

The fluid gives the upward thrust, hence the weight decreases.

Answer : A

Explanation

Most of the Himalayan rivers get originated from the snow hence are perennial.

Q 6 - Assertion (A): Lime water will change colour to milky if treated with carbon dioxide.

Reason(R): Lime water becomes sullied through carbon dioxide.

A - Both A and R are true and R is the correct explanation of A.

B - Both A and R are true but R is not the correct explanation of A.

C - A is true but R is false.

D - A is false but R is true.

E - Both A and R are false.

Answer : C

Explanation

Carbon dioxide, when treated with lime water, forms calcium carbonate which turns it into milky colour.

Answer : C

Explanation

Being a bad conductor of heat, ebonite does not heat up.

Answer : C

Explanation

Both the statements are individually true but R does not explains A correctly.

Q 9 - Assertion (A): If the atmosphere gets affected with unwanted noise signals then it is called noise signal.

Reason(R): Communication signal gets affected with it.

A - Both A and R are true and R is the correct explanation of A.

B - Both A and R are true but R is not the correct explanation of A.

C - A is true but R is false.

D - A is false but R is true.

E - Both A and R are false.

Answer : A

Explanation

The noise signal is unwanted because when it mixes with normal communication signal, we face communication problem.

Q 10 - Assertion (A): When light suddenly goes off we cannot see anything but after sometime we can see.

Reason(R): The retina of our eyes takes some time to get widened.

A - Both A and R are true and R is the correct explanation of A.

B - Both A and R are true but R is not the correct explanation of A.

C - A is true but R is false.

D - A is false but R is true.

E - Both A and R are false.

Answer : A

Explanation

R gives the correct explanation of A.

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