A mixture of carboxylic acids `(X)` and `(Y)` cannot be separated by normal methods howerver when this mixture is treated with optically active quinine give optically acitve salts `(P)` and `(Q)`. These two salts can be separated by fractional crystallization, separated and acidified with `HCl` to from amines and carboxylic acids.
`(P)` and `(Q)` are separated by fractiional crystallization due to

Options

A. difference in boiling point
B. difference in solubility
C. difference in melting poilnt
D. difference in thermal stability

Answer

B

Explanation

Separation by fractional crystallization is base on the principle of difference in solubility. Hence b is correct.