Write a Balanced Half-Reaction for the Reduction of Permanganate Ion,MnO₇−,to

question 45

Multiple Choice

Write a balanced half-reaction for the reduction of permanganate ion,MnO₇−,to Mn²⁺ in an acidic solution.

• A) MnO₄−(aq)+ 4H₂O(l)→ Mn²⁺(aq)+ 8OH−(aq)
• B) MnO₄−(aq)+ 8H⁺(aq)+ 5e− → Mn²⁺(aq)+ 4H₂O(l)
• C) MnO₄−(aq)+ 5e− → Mn²⁺(aq)+ 4O^2-(aq)
• D) MnO₄−(aq)→ Mn²⁺(aq)+ 4O²⁻(aq)
• E) MnO₄−(aq)+ 4H⁺(aq)+ 5e− → Mn²⁺(aq)+ 4OH−(aq)

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