Question

Fractionator(s) required for separating binary azeotropic mixture is

(a) 1

(b) 2

(c) 3

(d) 4

I have been asked this question by my school principal while I was bunking the class.

Question is taken from Rectification of Azeotropic Mixtures topic in chapter Distillation of Mass Transfer

Answer 1

The correct answer is (b) 2

Easy explanation: Azeotropes has the same boiling point so for effective separation of two mixture we need additional fractionator since the vapour.