Question

Fractional distillation is a process of separation of  ____________

(a) 2 miscible liquids

(b) 2 immiscible liquids

(c) 1 miscible and 1 immiscible liquid

(d) None of the mentioned

The question was posed to me during an interview.

My doubt stems from Fractional Distillation in chapter Methods of Purification of Engineering Chemistry I

Answer 1

Correct choice is (a) 2 miscible liquids

Explanation: Fractional distillation is a process of separation of 2 immiscible liquids. Fractional distillation is the separation of a mixture into its component parts, or fractions, separating chemical compounds by their boiling point by heating them to a temperature at which one or more fractions of the compound will vaporize.