Chemistry 0620 · IGCSE · Electrolysis

Electrolysis — practice question

Fig. 7.1 illustrates the apparatus used to conduct electricity through molten magnesium chloride with platinum electrodes.
(a)[1]

Name the process illustrated in Fig. 7.1.

(b)[1]

Label the electrolyte shown in Fig. 7.1.

(c)[1]

Name the substance formed at the anode.

(d(i))[1]

State one property of platinum that makes it suitable for this role as an electrode.

(d(ii))[1]

Suggest a non-metal that could be used for the electrodes.

(e)[1]

State whether the process shown in Fig. 7.1 causes a physical or chemical change. Explain your answer.

(f)[2]

Draw one line from each form of magnesium chloride to the description that matches it.

Worked solution & mark scheme

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