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JEE Main 1992 Chemistry question on Redox and Electrochemistry

For the redox reaction
MnO4−+C2O42−+H+⟶Mn2++CO2+H2O\text{MnO}_4^- + \text{C}_2\text{O}_4^{2-} + \text{H}^+ \longrightarrow \text{Mn}^{2+} + \text{CO}_2 + \text{H}_2\text{O}
The correct coefficients of the reactants for the balanced reaction are

MnO4−C2O42−H+\quad\text{MnO}_4^- \quad\quad \text{C}_2\text{O}_4^{2-} \quad\quad \text{H}^+
  1. A.
    2 \quad 5 \quad 16
  2. B.
    16 \quad 5 \quad 2
  3. C.
    5 \quad 16 \quad 2
  4. D.
    2 \quad 16 \quad 5
Show answer

Correct option: A

[1992]

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