question_answer

Liquids and vapours curves show the compositions of the solution and vapour in equilibrium at the boiling point of the former. Pick out the correct diagram of the following representing the variation of boiling point of solution of two liquid \[\,A\] and B (where A is more volatile) with composition.

A)     

B)

C)

D)

Correct Answer: D

Solution :

[D] \[\to \]Liquid which is more volatile have less boiling point \[\to \]At higher temperature vapour phase exist in place of liquid