JEE Main & Advanced Chemistry Redox Reactions / रेडॉक्स अभिक्रियाएँ Question Bank Mock Test - Redox Reactions

  • question_answer
    For the redox reaction \[Mn{{O}^{-}}_{4}\]\[+\]\[{{C}_{2}}{{O}_{4}}^{2-}\]\[+\]\[{{H}^{+}}\]\[\to M{{N}^{2+}}\]\[+C{{O}_{2}}\]\[+{{H}_{2}}O\]the correct coefficients of the reactants for the balanced reaction are

    A)
    \[MnO_{4}^{-}\] \[{{C}_{2}}O_{4}^{2-}\] \[{{H}^{+}}\]
    2 5 16
     

    B)
    \[MnO_{4}^{-}\] \[{{C}_{2}}O_{4}^{2-}\] \[{{H}^{+}}\]
    16 5 2
     

    C)
    \[MnO_{4}^{-}\] \[{{C}_{2}}O_{4}^{2-}\] \[{{H}^{+}}\]
    5 16 2
     

    D)
    \[MnO_{4}^{-}\] \[{{C}_{2}}O_{4}^{2-}\] \[{{H}^{+}}\]
    2 16 5
     

    Correct Answer: A

    Solution :

    [a] The balance equation is \[2Mn{{O}_{4}}^{2-}+5{{C}_{2}}{{O}_{4}}^{2-}+16{{H}^{+}}\to 2M{{n}^{2+}}+10C{{O}_{2}}+8{{H}_{2}}O\]


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