Assertion (A): Aniline does not undergo Friedel-Crafts reaction.
Reason (R): $- {NH}_{2}$ group of aniline reacts with ${AlCl}_{3}$

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(A) is true but (R) is false

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are false

Both (A) and (R) are true and (R) is not the correct explanation of (A)

answer is A.

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Detailed Solution

Reaction between aniline and ${AlCl}_{3}$ ,

$Ph - {NH}_{2} \overset{{AlCl}_{3}}{\to} Ph - {NH}_{2} {}^{+}{AlCl}_{3}^{-}$

So, during the reaction $- {NH}_{2}$ group of aniline reacts with ${AlCl}_{3}$ to give salt.

This is the reason why aniline does not undergo Friedel-Crafts reaction.

Hence, option (A) is correct.

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