Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable…

Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their
  1. more extensive association of carboxylic acid via van der Waal's force of attraction.
  2. formation of carboxylate ion.
  3. formation of intramolecular H-bonding.
  4. formation of intermolecular H-bonding.

Solution


Carboxylic acid has a higher boiling point than aldehyde, ketone and even alcohols of comparable molecular mass.
This is due to their more extensive association through intermolecular H-bonding and it forms a dimer.

Asked in: NEET 2018

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