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In the reaction, R – Br + Cl rarr R-Cl +...

In the reaction, `R – Br + Cl rarr R-Cl + Br^(-)` . The rates of `SN_2` reaction of ethyl bromide (I), n-propyl bromide (II), isobutyl bromide (III) and neopentyl bromide (IV) follow the order: 

A

IV gt III gt II gtI

B

I gt II gt III gt IV

C

I gt III gt II gt IV

D

III gt II gt IV gt i

Text Solution

Verified by Experts

The correct Answer is:
B
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