10 g of is oxidised completely by 50 mL of 0.1 M solution

CHEMISTRY · Single correct · AP · Chemistry · Chemical Reactions · Chemical Reactions

Problem

10 g of Fe3O4\text{Fe}_3\text{O}_4 is oxidised completely by 50 mL of 0.1 M KMnO4\text{KMnO}_4 solution. The mass in g of Fe2O3\text{Fe}_2\text{O}_3 in Fe3O4\text{Fe}_3\text{O}_4 is: (1) 1.8 (2) 8.2 (3) 4.1 (4) 5.9

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