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Edexcel IGCSE Chemistry · Spec 4.5-4.6

Isomerism & Types of Organic Reaction

Isomerism and the main types of organic reaction.

Chemistry revision video

Isomerism & Types of Organic Reaction

Spec 4.5-4.6

What you need to know

  • Explain what structural isomers are
  • Recognise isomers of a molecule
  • Name the main types of organic reaction

Active recall

Quick check

Answer each question before opening the answer.

What are isomers?

Molecules with the same molecular formula but a different arrangement of atoms (structure).

Name a type of organic reaction.

Combustion, addition or substitution (for example).

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