GKFix MCQ Question

Which of the following can reduce Fe³⁺ to Fe²⁺?

• A. Fe3+ + e– → Fe2+ 0.77
• B. Cu2+ + 2e– → Cu(s) 0.34
• C. I2(s) + 2e– → 2I– 0.54
• D. Ag+ + e– → Ag(s) 0.80