EAMCET Medical EAMCET Medical Solved Paper-2007

  • question_answer
    Nitrobenzene is reduced by Zn and alcoholic potash mixture to get

    A)  \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]

    B)   \[{{C}_{6}}{{H}_{5}}NHNH{{C}_{6}}{{H}_{5}}\]

    C)  \[{{C}_{6}}{{H}_{5}}NN{{C}_{6}}{{H}_{5}}\]

    D)  \[{{C}_{6}}{{H}_{5}}-NH-CO-{{C}_{6}}{{H}_{5}}\]

    Correct Answer: B

    Solution :

                     Nitrobenzene is reduced by Zn and alcoholic potash into hydrazobenzene. \[2{{C}_{6}}{{H}_{5}}N{{O}_{2}}+10H\xrightarrow[{}]{Zn\,+\,alc.KOH}\] \[\underset{hydrazobenzene}{\mathop{{{C}_{6}}{{H}_{5}}-NH-NH-{{C}_{6}}{{H}_{5}}+{{H}_{2}}O}}\,\]


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