Assertion (A): With the increase of temperature, the viscosity of glycerine increases. Reason (R): Rise of tem

Question

Assertion (A): With the increase of temperature, the viscosity of glycerine increases. Reason (R): Rise of temperature increases kinetic energy of molecules.

Accepted Answer

The correct answer is D because the assertion is false while the reason is true.

Viscosity in liquids like glycerine is caused by cohesive forces between molecules. When the temperature increases, the kinetic energy of the molecules increases, which is why the reason is true. This increased kinetic energy allows molecules to overcome their cohesive forces more easily, leading to a decrease in internal friction. Consequently, the viscosity of glycerine decreases as temperature rises, making the assertion false. For liquids, viscosity and temperature have an inverse relationship.

Answer

Both A and R are individually true and R is the correct explanation of A

Answer

Both A and R are individually true but R is not a correct explanation of A

Answer

A is true but R is false

Answer

A is false but R is true

Assertion (A): With the increase of temperature, the viscosity of glycerine increases. Reason (R): Rise of temperature increases kinetic energy of molecules.

Explanation

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