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What is the product formed at the cathode in the electrolysis of molten NaCl?(a) Chlorine gas(b) Sodium metal(c) Hydrogen gas(d) Oxygen gasThe question was asked in a national level competition.The doubt is from Electrolytic Cells and Electrolysis in division Electrochemistry of Chemistry – Class 12

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Correct ANSWER is (b) Sodium metal

Explanation: In the electrolysis of NaCl, if the electrolyte is molten NaCl, then the only ions formed after DISSOCIATION are Na^+ and Cl^– ions. The CATHODE being a negatively charged electrode attracts the POSITIVE Na^+ ions and neutralizes it to form Sodium metal.



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