GKFix MCQ Question

What is the E⁰ value for the half-cell reaction: 2H⁺ + 2e⁻ → H₂(g)?

• A. Pb2+ + 2e– → Pb(s) –0.13
• B. Sn2+ + 2e– → Sn(s) –0.14
• C. 2H+ + 2e– → H2(g) 0.00
• D. Ni2+ + 2e– → Ni(s) –0.25