MHT CET 2025 Chemistry question

Identify the correct decreasing order of boiling points for different organic compounds from following

(A)Carboxylic acids > Amines > Alcohols
(B)Carboxylic acids > Alcohols > AminesCorrect
(C)Amines > Alcohols > Carboxylic acids
(D)Alcohols > Amines >Carboxylic acids

Answer: (B)

Solution

Boiling points depend on the strength of intermolecular hydrogen bonding. Carboxylic acids form strong hydrogen-bonded dimers (and even more extensively associated), so they boil highest. Alcohols have strong O-H...O hydrogen bonds, whereas amines have weaker N-H...N

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Question ID VK-101921