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Learning objective

Compare benzene stability with theoretical cyclohexatriene.

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Topic

Aromatic chemistry (A-level only)

Subtopic

Benzene and electrophilic substitution (A-level only)

Aqa A Level ChemistryOrganic chemistry

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Understand this objective

Quick explanation

Compare benzene stability with theoretical cyclohexatriene

  • This point belongs to Aromatic chemistry (A-level only), especially Benzene and electrophilic substitution (A-level only).
  • You need to be able to compare benzene stability with theoretical cyclohexatriene.
  • The key ideas to know are benzene.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

benzene

Why it matters

This objective helps connect Benzene and electrophilic substitution (A-level only) to exam-style questions, flashcards, and revision notes for Aromatic chemistry (A-level only).

Quick student answer

Which of the following statements correctly describes the stability of benzene compared to theoretical cyclohexatriene?

Direct answer

Benzene is less stable due to the presence of double bonds.

Key terms

  • Aromaticity: Aromaticity refers to the increased stability of cyclic compounds with delocalized π-electrons, following Huckel's rule (4n + 2 π electrons).
  • Electrophile: An electrophile is a species that accepts an electron pair from a nucleophile, often involved in electrophilic substitution reactions.

Common trap

Confusing electrophilic substitution with electrophilic addition: Remember that benzene's stability comes from its aromaticity, which is preserved in substitution reactions, not in addition.

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