GKFix MCQ Question

Which of the following can oxidize Fe(s) to Fe²⁺?

• A. Zn2+ + 2e– → Zn(s) –0.76
• B. Mg2+ + 2e– → Mg(s) –2.36
• C. Cu2+ + 2e– → Cu(s) 0.34
• D. Na+ + e– → Na(s) –2.71