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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 of the following is the correct order of reactivity of the aryl halides with a given nucleophile

A

I gt II gt III gt IV

B

IV gt III gt II gt I

C

I = II = III = IV

D

I gt II = III = IV

Text Solution

Verified by Experts

The correct Answer is:
D
Due to more E.N of fluorine, it can undergoes `SN` reactions faster but remaining halogens can have some reactivity
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