What is the chemical test to show that a gas is oxygen?
put a glowing splint into the gas, the splint relights
bubble the gas through limewater, limewater turns cloudy
put a lighted splint into the gas, a 'squeaky pop' sound is heard
put damp blue litmus paper into the gas, the litmus paper is bleached white
Practise Edexcel GCSE Chemistry Qualitative analysis: tests for ions with exam-style questions for Foundation and Higher tier. 127 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.
