O-LevelChemistryMetals & Reactivity5070/12 · May/June 2021 · Q341 Mark

Which statement about the preparation and properties of aluminium is correct?

AAluminium is obtained by heating aluminium oxide with carbon.

BAluminium is produced at the anode by electrolysis of aluminium oxide dissolved in molten cryolite.

CAluminium is unreactive as it forms an oxide coating.

DAluminium is used in overhead electricity cables as it is a good conductor of electricity and has a high density.

✓ Correct answer

C: Aluminium is unreactive as it forms an oxide coating.

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Topic: Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2021 Paper 1 Variant 2, question 34.

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