Question

The higher boiling points of carboxylic acids are due to

• A. Their acidic nature
• B. intermolecular hydrogen bonding
• C. their dimerisation
• D. both (b) and (c)

Answer 1

The correct option is D both (b) and (c)

Carboxylic acids, can form hydrogen bonds with each other as well as van der waals dispersion forces and dipole-dipole interactions. Also in carboxylic acids, hydrogen bonding can occur between two molecules to produce a dimer. They exist as dimer only in vapour phase. Hence Option (d) is correct.