First slide

Oxidation, Reduction, Oxidant and Reductant

Question

Which species are oxidized and reduced in the reaction ?
${FeC}_{2} O_{4} + {KMnO}_{4} ⟶ {Fe}^{3 +} + {CO}_{2} + {Mn}^{2 +}$

Easy

A

Oxidised : Fe, C; Reduced : Mn
B

Oxidised : Fe; Reduced : Mn
C

Reduced : Fe, Mn; Oxidised: C
D

Reduced: C ; Oxidised : Mn, Fe

Solution

Both Fe and C are oxidized and ${MnO}_{4}^{-}$ is reduced.
${FeC}_{2} O_{4} + K \overset{+ 7}{Mn} O_{4} \to \overset{+ 3}{Fe} + \overset{+ 4}{C} O_{2} + \overset{+ 2}{Mn}$

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