JEE Main Chemistry question

Chemistry Some Basic Concepts of Chemistry JEE Main

The vapour density of completely dissociated NH₄Cl would be:

(A)Slightly less than half of that of ammonium chloride
(B)Half of that of ammonium chlorideCorrect
(C)Double that of ammonium chloride
(D)Determined by the amount of solid ammonium chloride used in the experiment

Answer: (B)

Solution

VD(observed)=VD(theoretical)/(1+α(n−1)); with α=1, n=2, VD becomes exactly half.

Question ID VK-136065