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Learning objective

Explain why the C=C bond is attacked by electrophiles.

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Topic

Alkenes

Subtopic

Structure, bonding and reactivity

Aqa A Level ChemistryOrganic chemistry

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Quick explanation

Explain why the C=C bond is attacked by electrophiles

  • This point belongs to Alkenes, especially Structure, bonding and reactivity.
  • You need to be able to explain why the C=C bond is attacked by electrophiles.
  • The key ideas to know are electrophile.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

electrophile

Why it matters

This objective helps connect Structure, bonding and reactivity to exam-style questions, flashcards, and revision notes for Alkenes.

Quick student answer

Which of the following statements best explains why the C=C bond in alkenes is susceptible to electrophilic attack?

Direct answer

B) The C=C bond has a high electron density due to the presence of pi electrons.

Key terms

  • Electrophile: A species that is attracted to electrons and can accept an electron pair from a nucleophile.
  • Electrophilic addition: A reaction where an electrophile reacts with a nucleophile, resulting in the addition of atoms or groups across a double bond.

Common trap

Confusing electrophiles with nucleophiles: Remember that electrophiles seek electrons and are attracted to regions of high electron density, while nucleophiles donate electron pairs.

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