By which of the following reactions one can get N-methyl aniline from aniline ?

Alkylation

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Acetylation

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Benzoylation

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Bromination

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Solution

The correct option is A Alkylation
N-methyl aniline is the product of methylation of aniline.
When aniline is treated with methyl iodide, N-methyl aniline is obtained. However N-methyl aniline reacts further with another molecule of methyl iodide to form N, N-dimethyl aniline. N, N-dimethyl aniline further reacts with another molecule of methyl iodide to form trimethylanilinium iodide which is a quaternary ammonium salt.

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