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International Edexcel AS chemistry

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  1. Topic 4: introductory organic chemistry
    The fundamentals
    2 Topics
  2. Functional groups and homologous series
    2 Topics
  3. Nomenclature
    2 Topics
  4. Structural isomerism
    2 Topics
  5. Types of reaction
    2 Topics
  6. Substitution reactions
    2 Topics
  7. Hazards, risks and risk assessments
  8. Alkanes from crude oil
    1 Topic
  9. Alkanes as fuels
    1 Topic
International Edexcel AS chemistry Structural isomerism Deducing isomers
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Lesson 4, Topic 2
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Deducing isomers

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C5H12 has 3 isomers

Start with the straight chain isomer

Next remove a carbon and place it anywhere else to make a new isomer

Next, try removing 2 carbons and attaching them in a different position