Chlorine gas reacts with potassium bromide solution to form potassium chloride and bromine.
Cl2(g)+2KBr(aq)→2KCl(aq)+Br2(aq) \text{Cl}_2(\text{g}) + 2\text{KBr}(\text{aq}) \rightarrow 2\text{KCl}(\text{aq}) + \text{Br}_2(\text{aq}) Cl2(g)+2KBr(aq)→2KCl(aq)+Br2(aq)In this reaction, chlorine is reduced.
Explain, using the equation, how you know that chlorine has been reduced.
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.