The decreasing order of boiling points of ethyldimethylamine, n -butylamine and…
Chemistry · Class 12 · CBSE — Amines
The decreasing order of boiling points of ethyldimethylamine, n-butylamine and diethylamine is n-Butylamine > Diethylamine > Ethyldimethylamine. This trend of boiling point can be explained as
- boiling point increases with increase in molecular mass
- tertiary amines have highest boiling point due to highest basicity
- intermolecular hydrogen bonding is maximum in primary amines and absent in tertiary amines
- intramolecular hydrogen bonding is present in tertiary amines.
Answer
(C) intermolecular hydrogen bonding is maximum in primary amines and absent in tertiary amines
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