STANDARDChemistry-Redox Reactions
STANDARD Chemistry Disproportionation Reactions MCQ Question
Type: MCQ-conceptual-Medium-Class 11
The equation 3MnO₄²⁻ + 4H⁺ → 2MnO₄⁻ + MnO₂ + 2H₂O represents
A
reduction
B
disproportionation
C
oxidation in acidic medium
D
reduction in acidic medium.
Correct Answer
Option B
Detailed Explanation
3MnO₄²⁻ + 4H⁺ → 2MnO₄⁻ + MnO₂ + 2H₂O shows disproportionation since the oxidation state of Mn changes from +6 to +7 (MnO₄⁻) and +4 (MnO₂).
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