Read the Assertion and Reason below and choose the correct option. — Electrochemistry Chemistry Question

💡 Solution & Explanation

Thermodynamically, H^+ (E° = 0.00 V) is easier to reduce than Zn^2+ (E° = –0.76 V). However, the kinetic overvoltage (overpotential) required for hydrogen gas to evolve on a zinc surface is remarkably high. This extra kinetic barrier makes the reduction of H^+ less favorable than the reduction of Zn^2+, resulting in zinc deposition. Both statements are true and Statement II is the correct explanation. Therefore, correct answer is A.