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Which of the following is correct order ...

Which of the following is correct order of decreasing `S_(N)2` reactivity ?

A

`R_(2)CHX gt R_(3)CX gt RCH_(2)X`

B

`RCH_(2)X gt R_(3)CX gt R_(3)CX`

C

`RCH_(2)X gt R_(2)CHX gt R_(3)CX`

D

`R_(3)CX gt R_(2)CHX gt RCH_(2)X " "` (X = halogen)

Text Solution

Verified by Experts

The correct Answer is:
C
Reactivity decreases as the steric hindrance i.e., number of alkyl substituents at `alpha` - carbon increases, so option (C ) is correct.
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