1 Redox Reactions
For decolourisation of 1.5moles of KMnO4 in acidic medium the moles of H2O2 requires:
1) 3/ 2 2) 9 /4 3) 15 / 4 4) 21 / 4
SOLUTION
2KMnO4+3H2O2→2MnO2+3O2+2KOH+2H2O
2 moles of KMnO4 ≡ 3 moles of H2O2
∴1.5 moles of KMnO4 ≡ (3 × 1.5) / 2 H2O2???????
≡9 / 4 moles of H2O2
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