Question

Why methylamine is more basic than ammonia?

Solution

Due to the presence of electron donating alkyl group (methyl), the electron density at $$N$$ of methylamine ($$C{ H }_{ 3 }\rightarrow \ddot { N } { H }_{ 2 }$$) is higher in comparison to that of ammonia ($$H-\ddot { N } { H }_{ 2 }$$). This phenomenon is also called positive inductive effect (+I-effect). Therefore, higher electron density at $$N$$ of methylamine makes it more basic than ammonia. Chemistry

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