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Illustrate the substitution reaction of alkanes with chlorine as a photochemical process, where ultraviolet light supplies the necessary activation energy, and depict the structural or displayed formulae of the resulting products, focusing on monosubstitution.

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Cambridge IGCSE ChemistryOrganic chemistrySupplement content

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Illustrate the substitution reaction of alkanes with chlorine as a photochemical process, where ultraviolet light supplies the necessary activation energy, and depict the structural or displayed formulae of the resulting products, focusing on monosubstitution

  • This point belongs to Alkanes, especially Alkanes outcomes.
  • You need to be able to illustrate the substitution reaction of alkanes with chlorine as a photochemical process, where ultraviolet light supplies the necessary activation energy, and depict the structural or displayed formulae of the resulting products, focusing on monosubstitution.
  • The key ideas to know are Describe and Draw.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

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DescribeDraw

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Paper 4 structured question: Alkanes

Paper 4Theory (Extended)1 marks

Description

Substitution Reaction of Alkanes

In the presence of ultraviolet light, alkanes react with chlorine to form chlorinated alkanes. This reaction involves the substitution of hydrogen atoms with chlorine atoms, typically resulting in monosubstitution.

  1. a

    State the role of ultraviolet light in this reaction.

    Aim for approximately 1 distinct marking point.

    [1]
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