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In electrolysis, the amount of mass deposited or liberated at an electrode is directly proportional to

1. square of electric charge
2. amount of charge
3. square of current
4. concentration of electrolyte

Correct answer: amount of charge

Solution

According to Faraday's first law of electrolysis, the mass of a substance deposited or liberated at an electrode is directly proportional to the amount of electric charge passed through the electrolyte.

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