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

  • Trimethylamine

  • Aniline

  • Dimethylamine

  • Methylamine

Answer

C.

Dimethylamine

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.

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