O-LevelChemistryAcids, Bases & Salts5070/12 · Oct/Nov 2023 · Q61 Mark

When dilute hydrochloric acid is added to aqueous lead(II) nitrate, a white precipitate of lead(II) chloride is formed. What is the ionic equation for this reaction?

APb2+(aq) + 2HCl(aq) → PbCl2(s) + 2H+(aq)

BPb2+(aq) + 2HCl(aq) + 2HNO3(aq) → PbCl2(s) + 4H+(aq) + 2NO3¯(aq)

CPb2+(aq) + 2Cl¯(aq) → PbCl2(s)

DPb(NO3)2(aq) + 2HCl(aq) → Pb²+(aq) + 2Cl¯(aq) + 2HNO3(aq)

✓ Correct answer

C: Pb2+(aq) + 2Cl¯(aq) → PbCl2(s)

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Topic: Acids, Bases & Salts, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2023 Paper 1 Variant 2, question 6.

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