A-LevelChemistryChemical periodicity9701/12 · May/June 2015 · Q351 Mark

When added to water, which oxides will cause a change in the pH of the water? 1 SiO₂ 2 CaO 3 SO₂

A1, 2 and 3 are correct

B1 and 2 only are correct

C2 and 3 only are correct

D1 only is correct

✓ Correct answer

C: 2 and 3 only are correct

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Topic: Chemical periodicity, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2015 Paper 1 Variant 2, question 35.

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