When comparing amine compounds of different classes but similar molar masses,which type will most likely be the highest boiling point?
A)primary amines
B)secondary amines
C)tertiary amines
D)quaternary ammonium salts

Question

Quizplus · Accepted Answer

Primary amines have hydrogen bonding between the nitrogen and hydrogen atoms, leading to stronger intermolecular forces and a higher boiling point compared to secondary and tertiary amines, which have less or no hydrogen bonding. Quaternary ammonium salts do not have any hydrogen atoms bonded to nitrogen and therefore do not have hydrogen bonding, leading to lower boiling points than primary amines.

When Comparing Amine Compounds of Different Classes but Similar Molar