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Learning objective

Explain that a homologous series consists of a group of similar compounds that share similar chemical properties due to having the same functional group.

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  • Read the explanation.
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  • Practise with linked questions.
Cambridge IGCSE ChemistryOrganic chemistryCore content

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Quick explanation

Explain that a homologous series consists of a group of similar compounds that share similar chemical properties due to having the same functional group

  • This point belongs to Formulae, functional groups and terminology, especially Formulae, functional groups and terminology outcomes.
  • You need to be able to explain that a homologous series consists of a group of similar compounds that share similar chemical properties due to having the same functional group.
  • The key ideas to know are State and Explain.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

StateExplain

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This objective helps connect Formulae, functional groups and terminology outcomes to exam-style questions, flashcards, and revision notes for Formulae, functional groups and terminology.

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Paper 3 structured question: Formulae, functional groups and terminology

Paper 3Theory (Core)1 marks

Description

Homologous Series

A homologous series consists of compounds that share the same functional group and exhibit similar chemical properties. For example, the alkanes are a homologous series of hydrocarbons.

  1. a

    State the definition of a homologous series.

    Aim for approximately 1 distinct marking point.

    [1]
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