A recycling plant tests a colourless process solution. It is known to contain either lithium ions or calcium ions. A technician has fresh nichrome wire loops and known solutions containing lithium ions and calcium ions.
Describe how the technician should use flame tests to identify the metal ion in the process solution.
107 exam-style questions on OCR GCSE Chemistry 4.2 Identifying the products of chemical reactions, covering 4.2.1 Tests to identify gases, 4.2.2 Tests for aqueous ions and flame tests, and 4.2.3 Instrumental methods of analysis. Each one has a worked solution and a mark scheme showing where the marks go.