InterviewSolution
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InterviewSolution
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For the redox reaction, `MnO_(4)^(-) + C_(2)O_(4)^(2-) + H^(+) rarr Mn^(2+) + CO_(2) + H_(2)O` the correct coefficients of the reactants for the balanced reaction areA. `{:(MnO_(4)^(-),C_(2)O_(4)^(2-),H^(+)),(16,5,2):}`B. `{:(MnO_(4)^(-),C_(2)O_(4)^(2-),H^(+)),(2,5,16):}`C. `{:(MnO_(4)^(-),C_(2)O_(4)^(2-),H^(+)),(2,16,5):}`D. `{:(MnO_(4)^(-),C_(2)O_(4)^(2-),H^(+)),(5,16,2):}` |
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Answer» Correct Answer - B `overset((+7))(Mn)O_(4)^(-) rarr Mn^(+2), 5e^(-)` gain `overset((+3))(C_(2))O_(4)^(-2) rarr overset((+4))(CO_(2)), 2e^(-)` loss Multiplying (1) by 2 and (2) by 5 to balance `e^(-)` `2MnO_(4)^(-)+5 C_(2)O_(4)^(-2) rarr 2 Mn^(+2)+10 CO_(2)` on balancing charge , `2MnO_(4)^(-)+5C_(2)O_(4)^(-2)+16H^(+) rarr 2Mn^(+2)+10 CO_(2)+8 H_(2)O` |
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