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Compare the electrolysis of molten potassium chloride and solution of potassium chloride. What are the processes taking place at the cathode and the anode? |
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Answer» Molten KCl KCl (s) → K+ + Cl- At the negative electrode: K+ + le- → K (reduction – cathode) At the positive electrode: 2Cl- → Cl2 + 2e- (oxidation- anode) Solution of potasium chloride. At the negative electrode: 2H2O + 2e- → H2 + 2OH- (cathode). At the positive electrode: 2Cl- → Cl2 + 2e- (anode). |
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