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Learning objective

Predict major products from addition to unsymmetrical alkenes.

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

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Topic

Alkenes

Subtopic

Electrophilic addition

Aqa A Level ChemistryOrganic chemistry

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Understand this objective

Quick explanation

Predict major products from addition to unsymmetrical alkenes

  • This point belongs to Alkenes, especially Electrophilic addition.
  • You need to be able to predict major products from addition to unsymmetrical alkenes.
  • The key ideas to know are from, predict, and addition.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

frompredictadditionproductsmajor

Why it matters

This objective helps connect Electrophilic addition to exam-style questions, flashcards, and revision notes for Alkenes.

Quick student answer

When propene (C3H6) undergoes electrophilic addition with HBr, which of the following is the major product?

Direct answer

2-bromopropane

Key terms

  • Electrophilic addition: A reaction where an electrophile reacts with a nucleophile, resulting in the addition of atoms or groups across a double bond.
  • Carbocation: An ion with a positively charged carbon atom, which is an important intermediate in many organic reactions.

Common trap

Ignoring Markovnikov's rule: Always apply Markovnikov's rule to determine the major product in reactions involving unsymmetrical alkenes.

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