Chemistry 5070 · O Level · Identification of ions and gases

Identification of ions and gases — practice question

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

  • A$\text{Pb}^{2+}(aq) + 2\text{HCl}(aq) \rightarrow \text{PbCl}_2(s) + 2\text{H}^+(aq)$
  • B$\text{Pb}^{2+}(aq) + 2\text{HCl}(aq) + 2\text{HNO}_3(aq) \rightarrow \text{PbCl}_2(s) + 4\text{H}^+(aq) + 2\text{NO}_3^-(aq)$
  • C$\text{Pb}^{2+}(aq) + 2\text{Cl}^-(aq) \rightarrow \text{PbCl}_2(s)$
  • D$\text{Pb(NO}_3)_2(aq) + 2\text{HCl}(aq) \rightarrow \text{Pb}^{2+}(aq) + 2\text{Cl}^-(aq) + 2\text{HNO}_3(aq)$

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