Edexcel IAL Chemistry AS 4.18 Free-radical substitution mechanism
Edexcel IAL Chemistry AS 4.18 Free-radical substitution mechanism
Show ultraviolet light and fish-hook arrows for bond fission, write two charge-balanced propagation equations and check that termination consumes two radicals.
How this is tested
- Draw initiation by homolytic fission with ultraviolet light and fish-hook arrows.
- Write propagation equations that form haloalkane and regenerate a radical.
- Identify termination equations in which two radicals combine with no radical product.