JEE Main Chemistry question

Chemistry Some Basic Concepts of Chemistry JEE Main

The silver salt of a monobasic acid, on ignition, gave 60% Ag. The molecular weight of the acid is

(A)37
(B)57
(C)73Correct
(D)88

Answer: (C)

Solution

Let M = molecular weight of the acid; molecular weight of the silver salt = M + 107. %Ag = 108/(M+107) = 0.60 → M + 107 = 180 → M = 73.

Question ID VK-139528