Question

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

• A. more extensive association of carboxylic acid via van der Waals force of attraction
• B. formation of intramolecular H-bonding
• C. formation of intermolecular H-bonding
• D. formation of carboxylate ion

Answer 1

The correct option is C formation of intermolecular H-bonding

Carboxylic acids have higher boiling points than aldehydes, ketones, and given alcohol of comparable molecular mass. This is because of formation of intermolecular $H$-bonding.