The ionic equation for the reaction between potassium iodide and bromine is:
2I−+Br2→2Br−+I2 2\text{I}^- + \text{Br}_2 \rightarrow 2\text{Br}^- + \text{I}_2 2I−+Br2→2Br−+I2Explain which species has been oxidised in this reaction.
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.