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Faraday's first law of electrolysis states that the mass deposited is:
AInversely proportional to the charge passed (Q)
BDirectly proportional to the charge passed (Q)
CIndependent of the molar mass of the substance
DProportional to the square of the current passed
Answer & Solution
Correct answer: B. Directly proportional to the charge passed (Q)
Faraday's 1st law: m = QM/(nF), so mass deposited is DIRECTLY PROPORTIONAL to charge Q = It. Higher current OR longer time → more mass deposited.
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