Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: SO (g) is adsorbed to a large extent than H (g) on activated charcoal. Reason R: SO (

Question

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

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

Prashant Kotian · Accepted Answer

Correct answer: B) BOTH A AND R ARE CORRECT, AND R IS THE CORRECT EXPLANATION OF A.. In general, easily liquefiable gases (i.e., with higher critical temperatures) are readily adsorbed as van der Waals’ forces are stronger near the critical temperatures. Thus, activated charcoal adsorbs more sulphur dioxide (critical temperature 630 K), than dihydrogen (critical temperature 33 K).

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