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Question 790006
JEE Chemistry · Medium

Aldehydes, Ketones and Carboxylic Acids: Carboxylic acid properties MCQ

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Carboxylic acid propertiesMediumQuestion 790006

Question

Carboxylic acids have higher boiling points than alcohols of similar molecular weight because:
  1. A
    They form stronger H-bonded dimers
    Correct
  2. B
    They are ionic
  3. C
    They have higher molar mass always
  4. D
    van der Waals forces are stronger

Correct answer

They form stronger H-bonded dimers

Explanation

Carboxylic acids form cyclic H-bonded dimers through two strong O−H···O hydrogen bonds. This effective doubling of molecular mass significantly raises boiling points.

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