Edexcel IAL Chemistry A2 18.3 benzene resistance to bromination
Edexcel IAL Chemistry A2 18.3 benzene resistance to bromination
The direct evidence asks for comparison: benzene needs a catalyst and undergoes substitution, unlike alkenes where localised π electrons support addition.
How this is tested
- Compare benzene substitution with cyclohexene addition when reacting with bromine.
- Explain benzene’s lower bromination reactivity through delocalised π electrons.
- Contrast benzene and phenol bromination conditions when the comparison is requested.