An analyst carried out two chemical tests on an unknown ionic compound. The results are shown in the table below.
| Test | Result | |
|---|---|---|
| Test 1 | Flame test carried out | A lilac flame |
| Test 2 | Dilute nitric acid added, followed by silver nitrate solution | A yellow precipitate |
Which ion is shown to be present by the result of Test 1?
calcium
copper
lithium
potassium
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.
