Which chemical law states that the mass of a substance deposited or liberated at an electrode during electrolysis is directly proportional to the quantity of electricity passed through the electrolyte?

💡 Solution & Explanation

Faraday's First Law of Electrolysis states that the mass of any substance deposited or liberated at an electrode is directly proportional to the total electric charge passed through the electrolyte. Avogadro's Law relates gas volume to moles rather than electrolytic deposition. Basic chemistry laws are standard examination material.