The boiling points of amines are lower than those of alcohols of similar molecular mass because:
A) Amines do not contain oxygen.
B) Amines cannot hydrogen bond to each other.
C) N-H hydrogen bonds are weaker than O-H hydrogen bonds.
D) More than one correct response.
E) No correct response.

Question

Quizplus · Accepted Answer

The boiling points of alcohols are higher than those of amines because oxygen is more electronegative than nitrogen, and thus the O-H bond is more polar than the N-H bond. This results in stronger hydrogen bonding between alcohol molecules compared to amines. Additionally, the N-H hydrogen bond is weaker than the O-H hydrogen bond, further contributing to the lower boiling points of amines.

The Boiling Points of Amines Are Lower Than Those of Alcohols