Chemistry · Unit 3 · Oxidation and reduction · Redox reactions
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In an electroplating process, a copper article is to be coated with a layer of nickel. Which statement correctly describes the role of the electrodes and electrolyte in this electroplating cell?
In an electroplating cell, a copper cathode and a copper anode are immersed in copper(II) sulfate solution. During the electroplating process, which statement is true?
A nickel-plating process uses an electrolytic cell with a steel spoon as the cathode and a nickel electrode as the anode. The electrolyte is a solution containing nickel ions. (a) Identify which electrode (anode or cathode) is connected to the negative terminal of the power supply. (1 mark) (b) State the ion that is reduced during this electroplating process. (1 mark)