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(a) The rate of nitration will be:...

(a)
The rate of nitration will be:

A

`a gt b gt c`

B

`a gt c gt b`

C

`a = b = c`

D

`c gt a gt b`

Text Solution

Verified by Experts

The correct Answer is:
C

The rate determining step is the formation of the `sigma-`complex (with the nitronium ion). Hence, there will not be a kinetic isotope effect, since `C - H` or `C - D` bond fission is not be the same for all three substrates (the attacking species is the same for all three). Therefore, the rate of nitration of all three will be the same
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