Absolute alcohol is prepared by

Options

A. fractional distillation
B. vacuum distillation
C. Steam distillation
D. azeotropic distillation

Answer

D

Explanation

Pure ethanol is known as absolute alcohol. Although more expensive than a binary azeotrope containing `95%` alcohol and `5%` water, it is available for use when specifically require, For preparing it, we distil the mixture of `95%` alcohol and `5%` water with benzene, called azeotropic distillation.