Which of the following statements correctly describe the electrochemical principles of corrosion and — Electrochemistry Chemistry Question

💡 Solution & Explanation

Rusting is an electrochemical process where the metal oxidizes at the anode ($Fe \rightarrow Fe^{2+} + 2e^-$) and oxygen is reduced at the cathode ($O_2 + 4H^+ + 4e^- \rightarrow 2H_2O$). Zinc protects iron by undergoing oxidation preferentially because it has a lower (more negative) reduction potential ($-0.76\text{ V}$) than iron ($-0.44\text{ V}$). Dissolved electrolytes increase water's conductivity, actively *accelerating* the corrosion rate, making D false.