Halogens react with hydrogen gas to form hydrogen halides.
Table 1 shows the relative speed of some of these reactions.
Fluorine also reacts with hydrogen gas.
Use Table 1 to predict the relative speed of the reaction between fluorine and hydrogen gas. Table 1
| Halogen | Relative speed of reaction |
|---|---|
| Fluorine | |
| Chlorine | Reacts very quickly |
| Bromine | Reacts slowly |
| Iodine | Reacts extremely slowly |
106 exam-style questions on Edexcel GCSE Chemistry 7.2 Group 7, covering 7.2.1 Physical properties of the halogens, 7.2.2 Reactions of the halogens, 7.2.3 Relative reactivity and displacement reactions of the halogens, and 7.2.4 Halogen displacement as a redox reaction. Each one has a worked solution and a mark scheme showing where the marks go.