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Table 1. Use it to answer the questions that follow. (a) (i) Identify a substance that is a metal. Give a reason.
(ii) Substance F does not conduct electricity in solid state but conducts in molten or aqueous state. Explain.
(b) Copper (II) sulphate solution was electrolyzed using the set up in Figure 1.
(i) State the observations made during electrolysis.
(ii) Write the equation for the reaction that occurs at the anode.
(iii) State the expected change in pH of the electrolyte after electrolysis.
(c) The experiment was repeated using copper electrodes instead of carbon electrodes. Describe the observations made at each electrode.
(d) Electroplating is an important industrial process.
(i) What is meant by electroplating?
(ii) State the purpose of electroplating.