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AIIMS AIIMS Solved Paper-2009

  • question_answer
    In the following redox equation, \[{{S}_{N}}1\]                              \[aUO_{2}^{2+}\,+zC{{r}^{3+}}\,+b{{H}_{2}}O\]  the values of coefficients x, y and z are, respectively

    A) 3, 8, 2                   

    B)        3, 8, 7   

    C)        3, 2, 4                   

    D)        3, 1, 8

    Correct Answer: A

    Solution :

    The balanced chemical reaction is as \[FeS{{O}_{4}}+NO\xrightarrow{{{H}_{2}}O}[Fe{{(OH)}_{5}}NO]S{{O}_{4}}\]                                               \[\frac{1}{\lambda }={{R}_{H}}{{Z}^{2}}\left[ \frac{1}{n_{1}^{2}}-\frac{1}{n_{2}^{2}} \right]\] Hence, the values of x, y and z are respectively 3, 8, 2.


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