Carboxylic acid have higher boiling points than aldehydes, ketones and even alcohol of comparable molecular mass. It is due to their

Options

A. More extensive association of carboxylic acid via van der Waals force of attraction
B. Formation of carboxylate ion
C. Formation of intramolecules H-bonding
D. Formation of intermolecules H-bonding

Answer

D

Explanation

Due to formation of intermolecular H-bonding in carboxylic acid, association occurs. Hence boiling point increases and become more than the boiling point of aldehydes, ketones and alcohols of comparable molecular masses.