An analyst makes dilute aqueous solutions of lithium chloride, sodium chloride, potassium chloride and cobalt(II) chloride. The labels become detached. One of the solutions is pink.
Which compound is present in the pink solution?
Lithium chloride
Potassium chloride
Sodium chloride
Cobalt(II) chloride
91 exam-style questions on AQA GCSE Chemistry 1.3 Properties of transition metals, covering 1.3.1 Comparison with Group 1 elements and 1.3.2 Typical properties of transition metals. Each one has a worked solution and a mark scheme showing where the marks go.