GKFix MCQ Question

Which of the following has E⁰ = 1.78 V?

• A. H2O2 + 2H+ + 2e– → 2H2O
• B. O2(g) + 4H+ + 4e– → 2H2O 1.23
• C. MnO4– + 8H+ + 5e– → Mn2+ + 4H2O 1.51
• D. Au3+ + 3e– → Au(s) 1.40