GKFix MCQ Question

Which of the following has E⁰ = 1.23 V?

• A. MnO2(s) + 4H+ + 2e– → Mn2+ + 2H2O 1.23
• B. O2(g) + 4H+ + 4e– → 2H2O
• C. Br2 + 2e– → 2Br– 1.09
• D. NO3– + 4H+ + 3e– → NO(g) + 2H2O 0.97