GKFix MCQ Question

Which of the following couples has E⁰ = –0.25 V?

• A. Fe2+ + 2e– → Fe(s) –0.44
• B. Sn2+ + 2e– → Sn(s) –0.14
• C. Ni2+ + 2e– → Ni(s)
• D. Pb2+ + 2e– → Pb(s) –0.13