The hydrogen test
The hydrogen test

Hydrogen is a flammable gas. To test for it, collect a small sample of the gas in a test tube and hold a lit, or burning, splint at the open end.
Step-by-step lessons on AQA GCSE Chemistry 8.2.1 Test for hydrogen. Each one builds up to exam-style questions. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.