Question

If the distillate has a composition of azeotrope and the residue has rich phase of one component. Then the azeotropic mixture is a

(a) Maximum-boiling mixture

(b) Minimum boiling mixture

(c) Constant boiling mixture

(d) Differential boiling mixture

I had been asked this question in an interview.

This is a very interesting question from Rectification of Azeotropic Mixtures in chapter Distillation of Mass Transfer

Answer 1

The correct option is (b) Minimum boiling mixture

Explanation: Minimum boiling mixture is the mixture where the high volatile component goes to the distillate and other comes to residue.