The correct order of increasing basic nature | vedclass

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Question

(C) The basicity of amines depends on the availability of the lone pair of electrons on the nitrogen atom.$1$. The alkyl group $(CH_3-)$ is an electro

Vedclass · Accepted Answer

$NH_3 < CH_3NH_2 < (CH_3)_2NH$

Vedclass · Answer

(C) The basicity of amines depends on the availability of the lone pair of electrons on the nitrogen atom.$1$. The alkyl group $(CH_3-)$ is an electron-donating group that exhibits the $+I$ effect,which increases the electron density on the nitrogen atom.$2$. Ammonia $(NH_3)$ has no alkyl groups,so it is the least basic among the three.$3$. Methylamine $(CH_3NH_2)$ has one methyl group,while dimethylamine $((CH_3)_2NH)$ has two methyl groups.$4$. Since $(CH_3)_2NH$ has two electron-donating groups,it has higher electron density on the nitrogen atom compared to $CH_3NH_2$.Therefore,the correct order of increasing basicity is $NH_3 < CH_3NH_2 < (CH_3)_2NH$.

The correct order of increasing basic nature for the bases $NH_3$,$CH_3NH_2$ and $(CH_3)_2NH$ is

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