GKFix MCQ Question

Which of the following has E⁰ = 0.68 V?

• A. H2O2 + 2H+ + 2e– → 2H2O 1.78
• B. O2(g) + 2H+ + 2e– → H2O2
• C. Fe3+ + e– → Fe2+ 0.77
• D. I2(s) + 2e– → 2I– 0.54