The products A and B obtained in the following reactions, respectively, are: \mathrm{3ROH + PCl3 \rightarrow 3RCl + A} \mathrm{ROH + PCl5 \rightarrow RCl + HCl + B}

C. \mathrm{PCl3} with an alcohol gives the alkyl chloride and phosphorous acid \mathrm{H3PO3}; \mathrm{PCl5} gives the alkyl chloride, HCl and phosphoryl chloride \mathrm{POCl3}.

ChemistryNEET 2024Preparation and reactions of alcohols

Alcohols, Phenols and Ethers

The products A and B obtained in the following reactions, respectively, are:

$3ROH + PC l_{3} \to 3RCl + A$

$ROH + PC l_{5} \to RCl + HCl + B$

A. $POC l_{3}$ and $H_{3} P O_{4}$
B. $H_{3} P O_{4}$ and $POC l_{3}$
C. $H_{3} P O_{3}$ and $POC l_{3}$ ✓
D. $POC l_{3}$ and $H_{3} P O_{3}$

Solution

$PC l_{3}$ with an alcohol gives the alkyl chloride and phosphorous acid $H_{3} P O_{3}$ ; $PC l_{5}$ gives the alkyl chloride, HCl and phosphoryl chloride $POC l_{3}$ .

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Alcohols, Phenols and Ethers

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