Chemistry GCSE
Unsaturation
What Unsaturation means in Chemistry GCSE, as defined for AQA.
Definitions of Unsaturation
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Reference: AQA
The presence of a carbon-carbon double bond, shown by bromine water being decolourised from orange-brown to colourless.
The C=C makes an alkene unsaturated, because the carbons are bonded to fewer hydrogen atoms than the maximum possible.
Topics that use Unsaturation
- Reactions of alkenes (AQA GCSE)
Related terms
- Addition reactions
- Dihaloalkane
- Fully displayed formulae
- Functional groups
- Homologous series
- Patterns in organic chemistry
- Prediction from structure
Using Unsaturation in the exam
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