JEE Main Chemistry question

Absolute alcohol is prepared from rectified spirit by

(A)Fractional distillation
(B)Steam distillation
(C)Azeotropic distillationCorrect
(D)Vacuum distillation

Answer: (C)

Solution

Rectified spirit (about 95.5% ethanol–water) is already at the ethanol–water azeotropic composition and cannot be concentrated further by ordinary fractional distillation; adding benzene and

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Question ID VK-148932