SPM Chemistry

Test with Chloride Ions

Test with Chloride Ions

  1. Out of the 10 cations, only lead(II) ions will form a precipitate with chloride ions.
  2. This is because lead(II) chloride is insoluble in water.
  3. The chemical reaction is a double decomposition reaction.
    Pb2+ + 2Cl → PbCl2
  4. Lead(II) chloride will dissolve in hot water.

HCl or NaCl
Na+
Ca2+
Mg2+
Al3+
.-
Zn2+
Pb2+
White precipitate.
Dissolve in hot water
Fe2+
Fe3+
Cu2+
NH4+