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Give the decreasing order of reactivity ...

Give the decreasing order of reactivity of the following alkyl halides in the Williamson's reaction.
i. `(CH_(3))_(3)C-CH_(2)Br` ii. `CICH_(2)CH=CH_(2)`
iii. `(CICH_(2)CH_(2)CH_(3)` iv. `BrCH_(2)CH_(2)CH_(3)`

A

ii gt iv gt iii gt i

B

i gt iii gt iv gt ii

C

ii gt iii gt iv gt i

D

i gt iv gt iii gt ii

Text Solution

Verified by Experts

The correct Answer is:
A
ii gt iv gt iii gt I (allyl chloride gt `1^(@)` RBr gt `1^(@)` RCI gt neopentyl bromide. `(R-Br)` bond is weaker than `(R-CI)` bond `SN^(2)` reaction is faster with `(R-Br)` than with `(R-CI)`.
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