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 Form 4 Electrochemistry Topical Questions and Answers

The set-up below was used to electrolyse aqueous copper (II) sulphate.
figelectrochemistry23420201033.JPG
(a) Explain why the bulb light brightly at the beginning of the
experiment becomes dim after sometime.
(b) Write the ionic equation of the reaction
that took place at the cathode.

 (3m 29s)
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