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O-LevelChemistryAcids, Bases & Salts5070/11 · Oct/Nov 2025 · Q181 Mark

Some properties of a solid oxide are listed. • It reacts with dilute sulfuric acid giving a salt and water. • It is insoluble in water. • It reacts with aqueous sodium hydroxide. Which oxide is being described?

Aaluminium oxide
Bmagnesium oxide
Cphosphorus(V) oxide
Dsodium oxide

✓ Correct answer

A: aluminium oxide

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About this question

Topic
Acids, Bases & Salts, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source
O-Level Chemistry, Oct/Nov 2025 Paper 1 Variant 1, question 18.

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