COMEDK · Chemistry · 5. States of Matter

Identify the gas which is readily adsorbed by activated charcoal

A \(\mathrm{H}_{2}\)
B \(\mathrm{O}_{2}\)
C \(\mathrm{N}_{2}\)
D \(\mathrm{SO}_{2}\)

Verified Solution

Answer & Solution

Correct Answer

(D) \(\mathrm{SO}_{2}\)

Step-by-step Solution

Detailed explanation

The gas which has greater critical temperature is readily adsorbed by activated charcoal. The order of critical temperature is \(\mathrm{H}_{2} < \mathrm{N}_{2} < \mathrm{O}_{2} < \mathrm{SO}_{2}\) \(\therefore \mathrm{SO}_{2}\) gas is readily adsorbed by chorcoal.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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