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In S(N)2 reaction, the correct order of ...

In `S_(N)2` reaction, the correct order of reactivity for following compounds
`CH_(3)Cl,CH_(3)CH_(2)Cl,(CH_(3))_(2)CHCl,(CH_(3))_(3)C-Cl` is

A

`(CH_(3))_(2)CHCl gt CH_(3)CH_(2)Cl gt CH_(3)Cl gt (CH_(3))_(3)C Cl`

B

`CH_(3)Cl gt (CH_(3))_(2)CHCl gt CH_(3)CH_(2)Cl gt (CH_(3))_(3)C Cl`

C

`CH_(3)Cl gt CH_(3)CH_(2)Cl gt (CH_(3))_(2)CHCl gt (CH_(3))_(3)C Cl`

D

`CH_(3)CH_(2)Cl gt CH_(3)Cl gt (CH_(3))_(2)CHCl gt (CH_(3))_(3)C Cl`

Text Solution

Verified by Experts

The correct Answer is:
C
Rate of reaction depends on steric crowding of alkyl halide. Therefore, the order of reactivity is
`CH_(3)Cl gt CH_(3)CH_(2)Cl gt (CH_(3))_(2)CHCl gt (CH_(3))_(3)C Cl`
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