Question

For a ternary mixture, the number of cuts required is_________

(a) 1

(b) 2

(c) 3

(d) 4

This question was addressed to me during an interview for a job.

The doubt is from Distillation-Differential Distillation in division Distillation of Mass Transfer

Answer 1

Right answer is (b) 2

Explanation: The first two high volatile components are stored in two cuts and the low volatile remains in the still itself.