A technician adds a very reactive metal to water and collects the gas produced in a test tube. A glowing splint placed in the gas does not relight. The technician concludes that the gas is not hydrogen.
Evaluate the technician's conclusion. Include the correct test for hydrogen in your answer.
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.