Q39 / 150 · MHT CET 2008 · Chemistry

Which of the following is the weakest base?

A
Ethyl amine
Correct answer
B
Ammonia
C
Dimethyl amine
D
Methyl amine

Solution

Alkyl group (an electron releasing $(+I)$ group) increases electron density at N-atom, hence, basic nature is increased. In ammonia, no alkyl group is present, so it is least basic.

Hence, the correct answer is option: 'B'.

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