When aqueous bromine is added to a solution of sodium iodide, a displacement reaction occurs:
Br2(aq)+2NaI(aq)→2NaBr(aq)+I2(aq) \text{Br}_2(\text{aq}) + 2\text{NaI}(\text{aq}) \rightarrow 2\text{NaBr}(\text{aq}) + \text{I}_2(\text{aq}) Br2(aq)+2NaI(aq)→2NaBr(aq)+I2(aq)Explain, in terms of electron transfer, why this reaction is classified as a redox reaction.
Practise Edexcel GCSE Chemistry Group 7 with exam-style questions for Foundation and Higher tier. 87 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.