Q. Absolute alcohol cannot be obtained by simple fractional distillation because
A) Pure $C_{2}H_{5}OH$ is unstable
B) $C_{2}H_{5}OH$ forms hydrogen bonds with water
C) Boiling point of $C_{2}H_{5}OH$ is very close to that of water
D) Constant boiling azeotropic mixture is formed with water
Explanation
(d)
The components of an azeotropic mixture are separated by special method,$ie$, fractional distillation. The simple fraction which distils at 337.8 K is a ternary azeotrope consisting of all water. Some alcohol and benzene
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.