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The order of decreasing SN1 reactivities...

The order of decreasing SN1 reactivities of the halldes `CH_2=CH-CHCICH_3 CH_3CH_2-CHCI-CH_3` and `CH_3-CH_2-CH_2Cl` is

A

`I gt II gt III`

B

`II gt I gt III`

C

`II gt III gt I`

D

`III gt II gt I`

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The correct Answer is:
A
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