O-LevelChemistryAcids, Bases & Salts5070/11 · May/June 2015 · Q181 Mark

Which row correctly describes the oxides?

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ARow A: Al₂O₃ basic, K₂O acidic, MgO acidic, SO₂ amphoteric

BRow B: Al₂O₃ acidic, K₂O basic, MgO amphoteric, SO₂ acidic

CRow C: Al₂O₃ amphoteric, K₂O basic, MgO amphoteric, SO₂ acidic

DRow D: Al₂O₃ amphoteric, K₂O basic, MgO basic, SO₂ acidic

✓ Correct answer

D: Row D: Al₂O₃ amphoteric, K₂O basic, MgO basic, SO₂ acidic

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Topic: Acids, Bases & Salts, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2015 Paper 1 Variant 1, question 18.

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