Which outcome arises when an aqueous solution containing dissolved iron(III) chloride, FeCl3, is electrolyzed at high current density?

💡 Explanation

Chlorine gas evolves because the high current density favors kinetics over thermodynamics; therefore, the chloride ions oxidize via electrolysis, rather than water oxidizing to produce oxygen because of a lower overpotential for chloride oxidation under the given conditions.

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