Nitrogen Containing CompoundHard

Question

Which one of the following is the strongest base in aqueous solution?

Options

A.Trimethylamine
B.Aniline
C.Dimethylamine
D.Methylamine

Solution

In aqueous solution basicity order of 1o, 2o and 3o amine with methyl group is 2o>1o>3o
In case of aniline lone pair of nitrogen is involved in resonance, so it is weaker base than aliphatic amines.
Hence, (3) is correct.

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