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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 33

  • question_answer
    For the redox reaction, \[MnO_{4}^{-}>+{{C}_{2}}O_{4}^{-2}+{{H}^{+}}\to M{{n}^{+2}}+C{{O}_{2}}+{{H}_{2}}O\] the correct coefficient of reactants \[MnO_{4}^{-},{{C}_{2}}O_{4}^{-2},\]\[{{H}^{+}}\] for the balanced reaction are respectively:

    A) 2, 5, 16 

    B)                    16, 3, 12

    C) 15, 16, 12        

    D)        2, 16, 5

    Correct Answer: A

    Solution :

    [a] The balanced redox reaction is \[2MnO_{4}^{-}+5{{C}_{2}}O_{4}^{-2}+16{{H}^{+}}\]\[\to 2M{{n}^{+2}}+10C{{O}_{2}}+8{{H}_{2}}O\]


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