A sample of 1.55g of iron ore is dissolved in a acid solution in which the iron is converted into Fe2+. The solution formed is the titration with KMnO4 which oxidises Fe2+ to Fe3+ while the MnO4 ions are reduced to Mn2+ ions.92.9 mL of 0.020 M KMnO4 is required for titration to reach equivalence point. Write the balanced equation for titration.

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