What will be the balanced equation in acidic medium for the given reaction? Cr 2 O 7 2– (…
Chemistry · Class 11 · CBSE — Redox Reactions
What will be the balanced equation in acidic medium for the given reaction?
Cr2O72– (aq) + SO2(g) → Cr3+ (aq) + SO42– (aq)
Cr2O72– (aq) + SO2(g) → Cr3+ (aq) + SO42– (aq)
- Cr2O72– (aq) + 3SO2(g) + 2H+ (aq) → 2Cr3+ (aq) + 3SO42– (aq) + H2O(l)
- 2Cr2O72– (aq) + 3SO2(g) + 4H+ (aq) → 4Cr3+ (aq) + 3SO42– (aq) + 2H2O(l)
- Cr2O72– (aq) + 3SO2(g) + 14H+ (aq) → 2Cr3+ (aq) + 3SO42– (aq) + 7H2O(l)
- Cr2O72– (aq) + 6SO2(g) + 7H+ (aq) → 2Cr3+ (aq) + 6SO42– (aq) + 7H2O(l)
Answer
(A) Cr 2 O 7 2– ( aq ) + 3SO 2( g ) + 2H + ( aq ) → 2Cr 3+ ( aq ) + 3SO 4 2– ( aq ) + H 2 O ( l )
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