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Aryl halides are less reactive than alky...

Aryl halides are less reactive than alkyl halides due to the presence partial double character of C - X bond in aryl halides. Arly halides undergo nucleophilic substitution reactions, if electron withdrawing groups are introduced in ortho & para - positions in aryl halides. The reaction mechanism involves two steps. Keeping these points in view answer the following questions.
Which compound undergo nucleophilic substitution under mild conditions

A

B

C

D

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The correct Answer is:
D
More the E.W.G an chlorobenzene more will be the reactivity
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