Which equation represents chlorine displacing bromide ions?
Cl2+2Br−→2Cl−+Br2\mathrm{Cl_2+2Br^-\rightarrow2Cl^-+Br_2}Cl2+2Br−→2Cl−+Br2
Br2+2Cl−→2Br−+Cl2\mathrm{Br_2+2Cl^-\rightarrow2Br^-+Cl_2}Br2+2Cl−→2Br−+Cl2
Cl−+Br−→ClBr\mathrm{Cl^-+Br^-\rightarrow ClBr}Cl−+Br−→ClBr
Cl2+Br2→2ClBr\mathrm{Cl_2+Br_2\rightarrow2ClBr}Cl2+Br2→2ClBr
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.