We have learned that cations are attracted towards the -ve cathode and being discharged, and the anions are attracted towards the +ve anode and being discharged. Questions with Molten Electrolyte will then be easy to solve since there is only one type of cations and one type of anions.
Try this questions out to see how much you understand.
Question 1:
(i) Name the ions present in molten copper (II) bromide and the products at the electrodes.
(ii) Write equations, including states symbols, to represent the reaction at the cathode and the anode.
(iii) Finally, write the overall reaction that occurs when molten copper(II) bromide is electrolysed.
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