The chlorine test
The chlorine test
Chlorine is identified by holding damp blue litmus paper in the gas. A positive result is that the paper turns red first and is then bleached white.
Step-by-step lessons covering AQA GCSE Chemistry 8.2.4 Test for chlorine for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.