Question

Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Activated charcoal adsorbs $S{O}_2$ more efficiently than $C{H}_4.$
Reason R: Gases with lower critical temperatures are readily adsorbed by activated charcoal.
In the light of the above statements, choose the correct answer from the options given below.

• A. A is not correct but R is correct.
• B. A is correct but R is not correct.
• C. Both A and R are correct and R is the correct explanation of A.
• D. Both A and R are correct but R is NOT the correct explanation of A.

Answer 1

The correct option is B A is correct but R is not correct.

More polar gases easily adsorbs on activated charcoal.
And more polar gases has more (higher) critical temperature as compared to non-polar or less polar gases.
$\therefore$ Gases with higher critical temperature adsorbed more.