The ionic equation for the displacement reaction between chlorine gas and potassium bromide solution is:
2Br−+Cl2→2Cl−+Br2 2\text{Br}^- + \text{Cl}_2 \rightarrow 2\text{Cl}^- + \text{Br}_2 2Br−+Cl2→2Cl−+Br2Explain, in terms of electron transfer, which reactant species has been oxidised.
106 exam-style questions on Edexcel GCSE Chemistry 7.2 Group 7, covering 7.2.1 Physical properties of the halogens, 7.2.2 Reactions of the halogens, 7.2.3 Relative reactivity and displacement reactions of the halogens, and 7.2.4 Halogen displacement as a redox reaction. Each one has a worked solution and a mark scheme showing where the marks go.