Using same quantity of current, which among Na, Mg and Al is deposited more (by mass) during electro — Electrochemistry Chemistry Question

💡 Solution & Explanation

By Faraday's second law of electrolysis, the mass deposited is directly proportional to the equivalent weight of the substance. The equivalent weights are: Na = 23/1 = 23; Mg = 24/2 = 12; Al = 27/3 = 9. Since Na has the highest equivalent weight, it will deposit the most mass. Therefore, correct answer is A.