Alcohols Phenols And Ethers Question 126

Question: 3 moles of ethanol react with one mole of phosphorus tribromide to form 3 moles of bromoethane and one mole of X. Which of the following is X-

Options:

A) $ H_3PO_4 $

B) $ H_3PO_2 $

C) $ HPO_3 $

D) $ H_3PO_3 $

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Answer:

Correct Answer: D

Solution:

[d] $ 3C_2H_5OH+PBr_3\xrightarrow{{}}3C_2H_5Br+\underset{[X]}{\mathop{H_3PO_3}} $