During the electrolysis of concentrated sodium chloride solution, a pale green gas is produced at the anode.
This gas turns damp blue litmus paper red and then bleaches it white.
Identify this gas.
Practise Edexcel GCSE Chemistry Electrolytic processes with exam-style questions for Foundation and Higher tier. 100 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.