Electron transfer in displacement
Electron transfer in displacement
A halogen displacement is a redox reaction because oxidation and reduction happen at the same time. The halide ion loses an electron, while the free halogen molecule gains electrons.
Step-by-step lessons on Edexcel GCSE Chemistry 7.2.4 Halogen displacement as a redox reaction. 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.