Redox Reactions - Result Question 13

####13. For the redox reaction

[2018]

MnO4+C2O42+H+Mn2++CO2+H2O

The correct coefficients of the reactants for the balanced equation are

\begin{tabular}{llll} & MnO4 & C2O42 & H+ \

(a) & 16 & 5 & 2 \

(b) & 2 & 5 & 16 \

(c) & 5 & 16 & 2 \

(d) & 2 & 16 & 5 \end{tabular}

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Solution:

  1. (b) MnO4Mn2+;5egain

Multiplying (i) by 2 and (ii) by 5 to balance e

2MnO4+5C2O422Mn2++10CO2

On balancing charge;

2MnO4+5C2O42+16H+2Mn2++10CO2+8H2O



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