Question

Absolute alcohol cannot be obtained by simple fractional distillation because 

(a) Pure C₂H₅OH is unstable 

(b) C₂H₅OH forms hydrogen bonds with water 

(c) Boiling point of C₂H₅OH is very close to that of water 

(d) Constant boiling azeotropic mixture is formed with water

Answer 1

Correct option is (d) Constant boiling azeotropic mixture is formed with water

Based on the chemical nature of ethanol and water, their concentration in the liquid mixture do not alter when heated to its boiling point.