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Learning objective

Recognize that a substitution reaction involves the replacement of one atom or group of atoms by another.

Read the explanation, check the common trap, then practise with flashcards and questions.

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE ChemistryOrganic chemistrySupplement content

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Quick explanation

Recognize that a substitution reaction involves the replacement of one atom or group of atoms by another

  • This point belongs to Alkanes, especially Alkanes outcomes.
  • You need to be able to recognize that a substitution reaction involves the replacement of one atom or group of atoms by another.
  • The key ideas to know are State.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

State

Why it matters

This objective helps connect Alkanes outcomes to exam-style questions, flashcards, and revision notes for Alkanes.

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Practice Questions7 linked questions

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Paper 4 structured question: Alkanes

Paper 4Theory (Extended)1 marks

Description

Substitution Reaction Example

Consider the reaction of ethane with chlorine under UV light, which produces chloroethane and hydrogen chloride.

  1. a

    State the type of reaction that occurs when ethane reacts with chlorine.

    Aim for approximately 1 distinct marking point.

    [1]
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