Potassium bromide solution is colourless.
When chlorine water is added to potassium bromide solution, a reaction occurs.
2KBr+Cl2→2KCl+Br2 2\text{KBr} + \text{Cl}_2 \rightarrow 2\text{KCl} + \text{Br}_2 2KBr+Cl2→2KCl+Br2The mixture turns orange.
Give the name of the substance causing the orange colour.
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.