An environmental chemist has retrieved a solid residue from a dried-up riverbed near an industrial zone. The residue is suspected to contain metal salts.
Describe the experimental procedure the chemist should follow to perform a flame test on this solid residue to identify the metal cation present.
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.