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, Rate of reaction toward Backmann rearr...

, Rate of reaction toward Backmann rearrangement
when `gamma=underset((i))(CH_(3)CO_(2)^(-)), underset((ii)) (Cl-CH_(2)-CO_(2)^(-)), underset((iii)) (Ph-SO_(3)^(-))`

A

`(i) gt (ii) gt (iii)`

B

`(ii) gt (i) gt (iii)`

C

`(iii) gt (ii) gt (i)`

D

`(iii) gt (i) gt (ii)`

Text Solution

Verified by Experts

The correct Answer is:
C
Since RDS involve removal of leaving group, rate of reactions compared commpared by leaving group tendency.
`Ph-SO_(3)^("Ө") gt Cl-CH-(2)-CO_(2)^("Ө") gt CH_(3)-CO_(2)^("Ө")`
(weak base good leaving group)
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