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AIIMS AIIMS Solved Paper-2006

  • question_answer
     The charge required for the reduction of 1 mol of \[MnO_{4}^{-}\] to \[Mn{{O}_{2}}\] is:

    A)  1 F                                        

    B)  3 F                        

    C)  5 F                        

    D)         6 F

    Correct Answer: B

    Solution :

    \[MnO_{4}^{-}+2{{H}_{2}}O+3{{e}^{-}}\xrightarrow{{}}Mn{{O}_{2}}+4O{{H}^{-}}\] In the above reduction requires flow of 3 moles of electrons. So it required 3 F charge.


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