Which of the Following Statements Is True Concerning the Electrolysis

question 88

Multiple Choice

Which of the following statements is true concerning the electrolysis of a 1.0 M aqueous solution of NaI?
Reduction Half-Reaction
E° (V)
Na⁺(aq) + e^- Na(s) -2.71
2H₂O(l) + 2e^- H₂(g) + 2OH^-(aq) -0.83
2H⁺(aq) + 2e^- H₂(g) 0.00
I₂(s) + 2e^- 2I^-(aq) 0.54
O₂(g) + 4H⁺(aq) + 4e^- 2H₂O(l) 1.23

• A)The solution becomes more basic.
• B)Sodium is deposited at the cathode.
• C)Iodine is formed at the cathode.
• D)Oxygen is evolved at the anode.
• E)Hydrogen is evolved at the anode.

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