Question

Rectified spirit obtained by fermentation contains 4.5% of water So in order to remove it, rectified spirit is mixed with suitable quantity of benzene and heated Benzene helps because

• A. It is dehydrating agent and so removes water
• B. It forms the lower layer which retains all the water so that alcohol can be distilled off
• C. It forms an azeotropic mixture having high boiling point and thus allows the alcohol to distill over
• D. It forms low boiling azeotropic mixtures which distill over, leaving behind pure alcohol which can then be distilled

Answer 1

Answer: (D)

Correct answer is (d) It forms low boiling azeotropic mixtures which distill over, leaving behind pure alcohol which can then be distilled