RAJASTHAN ­ PET Rajasthan PET Solved Paper-2009

  • question_answer
    Which of the following is reduced by\[{{H}_{2}}{{O}_{2}}\]?

    A)  \[C{{l}_{2}}\]

    B)  \[{{[Fe{{(CN)}_{6}}]}^{4-}}\]

    C)  \[N{{H}_{2}}OH\]

    D)  \[SO_{3}^{2-}\]

    Correct Answer: A

    Solution :

     Hydrogen peroxide\[({{H}_{2}}{{O}_{2}})\]reduces\[C{{l}_{2}}\]into\[C{{l}^{-}}\]. \[{{H}_{2}}{{O}_{2}}+C{{l}_{2}}\xrightarrow[{}]{{}}2HCl+{{O}_{2}}\] While\[{{H}_{2}}{{O}_{2}}\]oxidises\[{{[Fe{{(CN)}_{6}}]}^{4-}},N{{H}_{2}}OH\]and\[SO_{3}^{2-}\].


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