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NEET Sample Paper NEET Sample Test Paper-75

  • question_answer
    The number of coulombs required to reduce 12.3 g of nitrobenzene to aniline, is

    A)  96500 C                      

    B)  5790 C              

    C)  95700 C                      

    D)  57900 C

    Correct Answer: D

    Solution :

    \[{{C}_{6}}{{H}_{5}}N{{O}_{2}}+6{{H}^{+}}+6{{e}^{-}}\,\xrightarrow{{}}\,{{C}_{6}}{{H}_{5}}N{{H}_{2}}+\,\,2{{H}_{2}}O\] 1 mol = 123g nitrobenzene required 6 mol electrons \[=\,\,\,\,6\,\,\times \,\,96500C\] \[\therefore \] 12.3g nitrobenzene will require \[=\,\,\,\frac{6\times 96500\times 12.3}{123}\,\,=\,\,57900\,C\]


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