Chemistry AS CI 3.3
- Created by: A.B.
- Created on: 30-11-13 15:46
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- Structural Isomerism
- SAME molecular formula, DIFFERENT structural formula
- 3 Different types of structural isomerism
- Chain Isomerism
- Chain lengths are different
- Often seen in alkanes
- Positional Isomerism
- Same functional group appears in different positions
- Often seen in alcohols
- Functional group isomerism
- Molecular formula same, functional group different
- Seen in alcohols and ethers
- Chain Isomerism
- Isomerisation in the oil refinery
- When straight-chained alkanes are heated in the presence of a catalyst, they become branched alkanes.
- Branched-chain alkanes have a higher octane number (less tendency to auto ignite).
- When straight-chained alkanes are heated in the presence of a catalyst, they become branched alkanes.
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