What are the products of following reaction? CH3CH2−OH+PCl5→
A
CH3CH2−Cl+POCl+HCl
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B
CH3CH2−Cl+POCl3+HCl
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C
CH3CH2−Cl+POCl2+HCl
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D
None of these
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Solution
The correct option is BCH3CH2−Cl+POCl3+HCl When Alcohol reacts with phosphorous halides gives Alkyl halides and by-products phosphoryl chloride (POCl3) and HCl.
Alkyl halides are best prepared from alcohols by phosphorous halides or thionyl chloride.