In order to oxidize a mixture of one mole of each of FeC2O4, Fe2(C2O4)3, FeSO4 and Fe2(SO4)3 in acidic medium, the…
Redox Reactions · Class 11 · JEE Main Previous Year Question
In order to oxidize a mixture of one mole of each of , , and in acidic medium, the number of moles of is:
- a
1
- b✓
2
- c
3
- d
1.5
2
Electrons lost per mole of each compound:
| Compound | | | Total e⁻ | |---|---|---|---| | (1 mol) | 1e⁻ | 2e⁻ | 3 | | (1 mol) | 0 (Fe³⁺ already) | e⁻ | 6 | | (1 mol) | 1e⁻ | 0 | 1 | | (1 mol) | 0 (Fe³⁺ already) | 0 | 0 |
Total electrons lost: mol e⁻
Moles of (n-factor = 5 in acid):
Answer: Option (2) — 2
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