O-LevelChemistryElectrolysis5070/12 · May/June 2020 · Q301 Mark

Aluminium is produced by the electrolysis of pure aluminium oxide. One of the electrodes in the process has to be replaced often. Which statement is correct?

AThe product at the anode reacts with the anode.

BThe product at the anode reacts with the cathode.

CThe product at the cathode reacts with the anode.

DThe product at the cathode reacts with the cathode.

✓ Correct answer

A: The product at the anode reacts with the anode.

Oracle Prep sorts past-paper questions by topic, so you can drill Electrolysis and see which topics are most likely to come up next.

Topic: Electrolysis, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2020 Paper 1 Variant 2, question 30.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content