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Best method of preapring alkyl chloride ...

Best method of preapring alkyl chloride is

A

`ROH+SOCl_(2)rarr`

B

`ROH+PCl_(5) rarr`

C

`ROH+PCl_(3) rarr`

D

`ROH+HCl overset("Anhy ZnCl"_(2))rarr`

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The correct Answer is:
A
The reaction in which product are gaseous in nature are, easy to remove.
`ROH +SOCl_(2) rarr RCl +SO_(2)darr+Hcldarr`
`because SO_(2) and HCl` are gaseous by - products and can be removed easily to get pure alkyl halide.
`therefore It is best method for preparation of alkyl halide.
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