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Name the compound. The product formed at the cathode during electrolysis of aqueous potassium chloride solution.
Correct Answer: 0
PLACEHOLDER ANSWER - the answer is a name. Water is reduced in preference to $$\text{K}^+$$, $$2\text{H}_2\text{O} + 2e^- \rightarrow \text{H}_2 + 2\text{OH}^-$$. So hydrogen gas is liberated at the cathode, leaving KOH in the solution around it.
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