Question

Acetic acid exists as dimer in benzene due to:

• A. condensation reaction
• B. hydrogen bonding
• C. presence of carboxyl group
• D. presence of hydrogen atom at $\alpha$- carbon

Answer 1

Answer: (B)

hydrogen bonding

Benzene is a non-polar solvent and acetic acid is a polar molecule. In benzene, two molecules of acetic acid form intermolecular H-bond and hence it exists as a dimer in Benzene.