Edexcel IAL Chemistry AS 4.10 Structural isomerism
Edexcel IAL Chemistry AS 4.10 Structural isomerism
Keep the molecular formula unchanged, alter atom connectivity, verify carbon valencies and compare names or structures to ensure each candidate is distinct.
How this is tested
- Define structural isomers as sharing a molecular formula but differing in connectivity.
- Draw missing skeletal or displayed structures for chain, position or functional isomers.
- Count distinct structural isomers while excluding duplicates and geometric variants.