WB JEE Medical WB JEE Medical Solved Paper-2013

  • question_answer
    In the reaction, A is

    A)  \[HgS{{O}_{4}}/{{H}_{2}}S{{O}_{4}}\]

    B)  \[C{{u}_{2}}C{{l}_{2}}\]

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

    D)  \[{{H}^{+}}/{{H}_{2}}O\]

    Correct Answer: C

    Solution :

     When diazonium salt is treated with \[{{H}_{3}}P{{O}_{2}}\]followed by hydrolysis, it diazonium group is replaced by -H resulting to the formation of hydrocarbon. Thus, A must be \[{{H}_{3}}P{{O}_{2}}/{{H}_{2}}O.\]


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