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Question

Which reagent cannot be used to prepare an alkyl chloride from an alcohol?

A
HCl+ anhyd. ZnCl2
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B
NaCl
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C
PCl5
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D
SOCl2
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Solution

The correct option is B NaCl
In alcohol, the OH is not a very good leaving group. So, the snthesis of alkyl halides from alcohol takes place in presence of acid or a reagent which can act as both chlorine source as well as easy removal of oxygen atom from alcohol. Hence NaCl can't be used to prepare alkyl chloride from alcohol.


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