Which of the Following Half-Reactions Should Be Affected by the Change

question 2

Multiple Choice

Which of the following half-reactions should be affected by the change in H⁺ concentration:
(i) ClO₂^-(aq) + H₂O(l) + 2e^- → ClO^-(aq) + 2OH^-(aq)
(ii) MnO₂(s) + 4H⁺(aq) +2e^- → Mn²⁺(aq) + 2H₂O(l)
(iii) ½ Cl₂(aq) + e^- → Cl^-(aq)

• A) (i) and (iii)
• B) (ii) and (iii)
• C) (i) and (ii)

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