Electrochemical equivalent is more for — Electrochemistry Chemistry Question

💡 Solution & Explanation

The electrochemical equivalent ($Z$) is directly proportional to the equivalent weight of the substance ($Z = E / 96500$). The equivalent weights are approximately: Hydrogen = 1, Silver = 108, Copper = 31.75, Zinc = 32.7. Silver has the highest equivalent weight and thus the highest electrochemical equivalent. Therefore, correct answer is B.