The total change in the oxidation state of manganese involved in the reaction of KMnO4 and potassium iodide in the acidic medium is______
Show Hint
In redox reactions, calculate the change in oxidation states by comparing reactants and products
Correct Answer: 5
Solution and Explanation
Reaction in acidic medium:
Mn+7 → Mn+2, Change in Oxidation State = 7 − 2 = 5.
- Manganese reduces from +7 in KMnO4 to +2 in Mn2+.
- Total change in oxidation state per manganese atom is 5.
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