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What Is the Half-Reaction That Occurs at the Cathode During

Question 89

Multiple Choice

What is the half-reaction that occurs at the cathode during the electrolysis of an aqueous sodium iodide solution?

A) Na⁺ + e^- →
B) O₂(g) + 4H⁺(aq) + 4e^-→ 2H₂O(l)
C) 2H₂O + 2e^- → H₂ + 2OH^-
D) I₂ + 2e^- → 2I^-
E) 2I^-→ I₂ + 2e^-

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