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Manipal Medical Manipal Medical Solved Paper-2009

  • question_answer
    For the redox reaction, \[Zn+NO_{3}^{-}\xrightarrow[{}]{{}}Z{{n}^{2+}}+NH_{4}^{+}\] in basic medium, coefficients of\[Zn,NO_{3}^{-},\]and \[O{{H}^{-}}\]in the balanced equation respectively, are

    A)  4, 1, 7           

    B)  7, 4, 1

    C)  4, 1, 10          

    D)  1, 4, 10

    Correct Answer: C

    Solution :

     \[4Zn+NO_{3}^{-}+7{{H}_{2}}O\xrightarrow[{}]{{}}4Z{{n}^{2+}}\] \[+NH_{4}^{+}+10O{{H}^{-}}\]


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