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Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R Assertion A: Amongst He, Ne, Ar and Kr; 1 g of activated charcoal adsorbs more of Kr. Reason R: The critical volume $\text{V}_c (\text{cm}^3 \text{mol}^{-1})$ and critical pressure $\text{P}_c (\text{atm})$ is highest for Krypton but the compressibility factor at critical point $\text{Z}_c$ is lowest for Krypton. In the light of the above statements, choose the correct answer from the options given below - FirstInTest | FirstInTest