GKFix MCQ Question

Which of the following couples has E⁰ = 0.80 V?

• A. Au3+ + 3e– → Au(s) 1.40
• B. Hg2+ + e– → Hg22+ 0.92
• C. Ag+ + e– → Ag(s)
• D. Fe3+ + e– → Fe2+ 0.77