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which of the following sequence of react...

which of the following sequence of reactions(reagents) can be used for conversion of `C _6 H_5 CH_2 CH_3 ` into `C_6 H_5 CH=CH_2` ?

A

`SOCl_2 , H_2 O`

B

`SO_2 Cl_2 , alc . KOH`

C

`Cl_2 hv , H_2 O`

D

` SOCl_2 , alc.KOH. `

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The correct Answer is:
B
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