JEE Main Chemistry question

and are van der Waals' constants for gases. Chlorine is more easily liquefied than ethane because **[AIEEE 2011]**

(A) and for and for
(B) and for and for
(C) for for but for for
(D) for for but for for Correct

Answer: (D)

Solution

Ease of liquefaction is favoured by a larger attractive constant (stronger intermolecular pull) together with a smaller (less excluded volume per molecule, i.e. molecules can pack closer). Chlorine's larger, more polarizable electron cloud gives it a bigger than

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Question ID VK-134023