Give possible explanation that aliphatic amines are stronger bases than ammonia.

Explanation

The structures of aliphatic amines and ammonia are as follows :

The comparison of their basic nature can be explained on the basis of inductive effect. In aliphatic amines, alkyl group being electron releasing in nature, increases the electron density on nitrogen / atom. It makes them able to donate a pair of electron more easily. On the other hand, in ammonia there is no such case. Hence, aliphatic amines are more basic than ammonia.