O-LevelChemistryMetals & Reactivity5070/11 · Oct/Nov 2018 · Q311 Mark

Aluminium is used to make saucepans because of its apparent lack of reactivity. Which property of aluminium explains its unreactivity?

AIt has a layer of oxide on its surface.

BIt has a low density.

CIt is a good conductor of electricity.

DIt is in Group III of the Periodic Table.

✓ Correct answer

A: It has a layer of oxide on its surface.

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Topic: Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2018 Paper 1 Variant 1, question 31.

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