MHT CET 2023 Chemistry question

Select the correct increasing order of boiling points of alcohols, amines and carboxylic acids of comparable molar mass from the following

(A)Alcohols < Amines < Carboxylic acids
(B)Amines < Carboxylic acids < Alcohols
(C)Amines < Alcohols < Carboxylic acidsCorrect
(D)Carboxylic acids < Alcohols < Amines

Answer: (C)

Solution

For compounds of comparable molar mass, the boiling point depends on the strength of intermolecular hydrogen bonding. Carboxylic acids form very strong hydrogen-bonded dimers (highest boiling point). Alcohols form strong O-H...O hydrogen bonds. Amines form

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Question ID VK-097302