Some transition metal cations can be identified using sodium hydroxide solution.
A few drops of dilute sodium hydroxide solution were added to a test tube containing copper(II) ions, Cu2+\text{Cu}^{2+}Cu2+.
What would be observed?
blue precipitate
green precipitate
red-brown precipitate
white precipitate
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.
