Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: $\mathrm{SO}_{2}(\mathrm{~g})$ is adsorbed to a larger extent than $\mathrm{H}_{2}(\mathrm{~g})$ on activated charcoal. Reason R: $\mathrm{SO}_{2}(\mathrm{~g})$ has a higher critical temperature than $\mathrm{H}_{2}(\mathrm{~g})$ In the light of the above statements, choose the most appropriate answer from the option given below.

(D) Both $\mathbf{A}$ and $\mathbf{R}$ are correct and $\mathbf{R}$ is the correct explanation of $\mathbf{A}$.

(A) Both $\mathbf{A}$ and $\mathbf{R}$ are correct but $\mathbf{R}$ is not the correct explanation of $\mathbf{A}$.

(B) $\mathbf{A}$ is not correct but $\mathbf{R}$ is correct.

(C) $\mathbf{A}$ is correct but $\mathbf{R}$ is not correct.

JEE Main · 2021 · 27 Jul 2021 · Shift 2 · Surface Chemistry

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A:

SO_{2} (g)

is adsorbed to a larger extent than

H_{2} (g)

on activated charcoal.
Reason R:

SO_{2} (g)

has a higher critical temperature than

H_{2} (g)

In the light of the above statements, choose the most appropriate answer from the option given below.

(A)Both $A$ and $R$ are correct but $R$ is not the correct explanation of $A$ .
(B) $A$ is not correct but $R$ is correct.
(C) $A$ is correct but $R$ is not correct.
(D)Both $A$ and $R$ are correct and $R$ is the correct explanation of $A$ .✓ Correct

Answer: (D)

Solution

Both statements are correct.

SO_{2}

has a higher critical temperature than

H_{2}

, which means it is easier to liquefy. Gases with higher critical temperatures have stronger intermolecular forces and are adsorbed more readily on activated charcoal. Therefore, the higher critical temperature of

SO_{2}

correctly explains why it is adsorbed to a greater extent than

H_{2}

JEE Main · 2021 · 27 Jul 2021 · Shift 2 · Single correct option

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JEE Main · 2021 · 27 Jul 2021 · Shift 2 · Surface Chemistry

Solution

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