NEET Chemistry Alcohols, Phenols and Ethers / एल्कोहॉल, फीनॉल तथा ईथर Question Bank Self Evaluation Test - Alcohols, Phenols and Ethers

  • question_answer
    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?

    A) \[{{H}_{3}}P{{O}_{4}}\]                    

    B) \[{{H}_{3}}P{{O}_{2}}\]

    C) \[HP{{O}_{3}}\]                      

    D) \[{{H}_{3}}P{{O}_{3}}\]

    Correct Answer: D

    Solution :

    [d] \[3{{C}_{2}}{{H}_{5}}OH+PB{{r}_{3}}\xrightarrow{{}}3{{C}_{2}}{{H}_{5}}Br+\underset{[X]}{\mathop{{{H}_{3}}P{{O}_{3}}}}\,\]


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