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.
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.
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.
Q 2 - Assertion (A): It is quite easy for the bats to fly at night.
Reason(R): They emit ultrasonic rays.
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.
It is easy for them to fly at night because through the ultrasonic rays they will be able to trace the objects quite easily.
Q 3 - Assertion (A): Once upon a time Himalaya used to be drain inside the sea.
Reason(R): Marine related fossils have been traced on Himalaya.
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.
Once upon a time Himalaya used to be inside the Tethy sea and trace of fossil soils have been found on the peak of the mountain.
Q 4 - Assertion (A): When we keep salt in open, it absorbs moisture.
Reason(R): Natural salt contains Magnesium chloride in more amount.
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.
The magnesium chloride present in the salt absorbs moisture from the air.
Q 5 - Assertion (A): If there is a leakage in household gas, it can be detected.
Reason(R): LPG gas have very strong smell.
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.
Ethyl mercaptan has been mixed with LPG that gives strong smell.
Q 6 - Assertion (A): During the winter season, the freezing of the water in the sea does not kill the fishes inside it.
Reason(R): Freezing of the water takes place at the surface level only.
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.
An insulation type coating is provided by the ice present on the surface of the sea. That is the reason why the water under it does not freeze.
Q 7 - Assertion (A): In the upper course, the river causes much erosion.
Reason(R): Swift flow of the river takes place in the upper course.
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.
Due to stiff area in the upper course, it is quite natural for the river to flow swiftly and hence cause erosion.
Q 8 - Assertion (A): To cook food in less time in higher altitudes, we add salts.
Reason(R): At high altitudes, the temp is low.
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.
Separately both the statements are true but R does not explains the reason stated in A.
Q 9 - Assertion (A): Navigation methodology was known to the people of Indus valley.
Reason(R): From the seal of Indus valley, one can see the picture of navigation over sea.
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.
R is giving the correct explanation of A.
Q 10 - Assertion (A): Tree draws water from the underground.
Reason(R): They do this through surface tension.
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.
They do this through surface tension.