A student carries out a flame test on a sample of sodium sulfate to identify the metal ion present.
What colour should the student observe in the flame if the test is carried out correctly?
Brick-red
Lilac
Yellow
Green
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.