Halogen displacement
Halogen displacement
A displacement reaction occurs when a more reactive element replaces a less reactive element in a compound. In a halogen displacement reaction, a halogen is added to a solution containing halide ions of another element.
Step-by-step lessons on Edexcel GCSE Chemistry 7.2.3 Relative reactivity and displacement reactions of the halogens. 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.