How many of the following five compounds are capable of forming strong intermolecular hydrogen bonds — Amines Chemistry Question

💡 Solution & Explanation

Intermolecular hydrogen bonding between identical molecules requires both a hydrogen bond donor ($N-H$) and an acceptor (lone pair on N). Primary amines (Aniline, Ethanamine) and secondary amines (N-methylaniline) have at least one $N-H$ bond and can form these bonds. Tertiary amines (Triethylamine, Trimethylamine) lack an $N-H$ bond and cannot form intermolecular H-bonds with themselves. Total = 3.