Question
Chemistry Question on Redox reactions
In order to oxidise a mixture one mole of each of \({FeC2O_4, Fe2(C2O4)3, FeSO4}) and \({Fe2(SO4)3}) in acidic medium, the number of moles of \({KMnO_4 }) required is -
A
3
B
2
C
1
D
1.5
Answer
2
Explanation
Solution
\({n_{eq} \; KMnO_4 = n_{eq} . [FeC2O4 + Fe2(C2O4)3 + FeSO4]}) or \(n \times 5 = 1 \times 3 + 1 \times 6 + 1 \times 1) \(\therefore n = 2)