The Half-Reaction Occurring at the Anode in the Balanced Reaction

question 45

Multiple Choice

The half-reaction occurring at the anode in the balanced reaction shown below is ________. 3MnO₄^- (aq) + 24H⁺ (aq) + 5Fe (s) → 3Mn²⁺ (aq) + 5Fe³⁺ (aq) + 12H₂O (l)

• A)MnO₄^- (aq)+ 8H⁺ (aq)+ 5e^- → Mn²⁺ (aq)+ 4H₂O (l)
• B)2MnO₄^- (aq)+ 12H⁺ (aq)+ 6e^- → 2Mn²⁺ (aq)+ 3H₂O (l)
• C)Fe (s)→ Fe³⁺ (aq)+ 3e^-
• D)Fe (s)→ Fe²⁺ (aq)+ 2e^-
• E)Fe²⁺ (aq)→ Fe³⁺ (aq)+ e^-

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