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International Edexcel AS chemistry
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Topic 4: introductory organic chemistryThe fundamentals2 Topics
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Functional groups and homologous series2 Topics
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Nomenclature2 Topics
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Structural isomerism2 Topics
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Types of reaction2 Topics
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Substitution reactions2 Topics
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Hazards, risks and risk assessments
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Alkanes from crude oil1 Topic
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Alkanes as fuels1 Topic
Lesson 5, Topic 2
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Key terms
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- Addition reaction:
A reaction in which two molecules combine to form one molecule
- Substitution reaction:
A reaction in which one atom or group is replaced by another atom or group
- Oxidation reaction:
A reaction in which a substance gains oxygen or looses hydrogen
- Reduction reaction:
A reaction in which a substance loses oxygen or gains hydrogen
- Polymerisation reaction:
A reaction in which large numbers of small molecules reaction together to form one very large molecule
- Homolytic fission:
The breaking of a covalent bond where each of the bonding electrons leaves with one species, forming a free radical
- Heterolytic fission:
The breaking of a covalent bond so that both bonding electrons are taken by one atom
- Fee radical:
A species that contains an unpaired electron