In strongly acidic medium $\mathrm{KMnO}{}_4$ (molar mass $158\mathrm{g}\mathrm{mo}{\mathrm{l}}^{-1}$) is reduced to $\mathrm{Mn}{}^{2+}$. Its equivalent mass is:

More questions on n-factor for oxidants and reductants, normality

• Sodium thiosulfate (Na2S2O3, molar mass 158 g mol^-1; Na2S2O3.5H2O=248 g mol^-1) is oxidised by I2 to tetrathionate, and by excess Cl2 water... JEE Advanced level
• Fe3O4 (molar mass 232 g mol^-1) is (i) oxidised completely to Fe2O3 by KMnO4 and (ii) reduced completely to Fe by hydrogen. The equivalent m... JEE Advanced level
• 1.89 g of oxalic acid dihydrate H2C2O4.2H2O (molar mass 126 g mol^-1) is titrated in hot acidic medium with 0.040 M KMnO4. Select the correc... JEE Main level
• When oxalic acid, H2C2O4, is oxidised completely to CO2 by acidified permanganate, its n-factor is: NEET level
• Ferrous oxalate, FeC2O4, is oxidised by acidified KMnO4 to Fe^3+ and CO2. The n-factor of FeC2O4 is: NEET level
• A 0.20 M solution of H3PO4 is completely neutralised to Na3PO4 by NaOH. Its normality is: NEET level