Question

The locus of compositions that cannot be crossed by the given distillation process, is called?

(a) Distillation line

(b) Distillation Boundary

(c) Distillation Map

(d) Distillation region

This question was addressed to me in an interview for job.

My doubt stems from Extractive Distillation Terminology topic in section Azeotropic and Extractive Distillation of Distillation Design

Answer 1

Correct answer is (b) Distillation Boundary

Best explanation: The locus of compositions that cannot be crossed by the given distillation process, the existence and location of such boundaries depend critically on the type of distillation in question.