Question detail

What is the main product formed at the cathode during the electrolysis of molten aluminium oxide?

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

MCQ

Type

practice

Style

Topic

Electrolysis

Question

Aluminium

During the electrolysis of molten aluminium oxide, aluminium ions gain electrons at the cathode to form aluminium metal.

Misidentifying the anode product

Students often write that aluminium is produced at the anode during aluminium extraction.

Explain that aluminium ions are reduced at the cathode to give aluminium metal, while oxide ions are oxidised at the anode to give oxygen gas.

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