Question 1
Learning objective
Recognise alkenes from their names or from given formulae.
Read the explanation, check the common trap, then practise with flashcards and questions.
At a glance
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Flashcards
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Questions
Topic
Reactions of alkenes and alcohols (chemistry only)
Subtopic
Structure and formulae of alkenes
Aqa Gcse ChemistryOrganic chemistry
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Understand this objective
Quick explanation
Recognise alkenes from their names or from given formulae
- This point belongs to Reactions of alkenes and alcohols (chemistry only), especially Structure and formulae of alkenes.
- You need to be able to recognise alkenes from their names or from given formulae.
- The key ideas to know are alkene.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
alkene
Why it matters
This objective helps connect Structure and formulae of alkenes to exam-style questions, flashcards, and revision notes for Reactions of alkenes and alcohols (chemistry only).
Quick student answer
How do you identify alkenes from their names or from given formulae?
Direct answer
In Chemistry, this page helps you answer questions about alkenes from their names or from given formulae within Reactions of alkenes and alcohols (chemistry only). Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are alkene and functional group.
Key terms
- alkene: A hydrocarbon that contains a carbon-carbon double bond.
- functional group: A specific group of atoms within a molecule that is responsible for the characteristic reactions of that molecule.
Common trap
Misidentifying Alkenes: To differentiate, remember that alkenes contain a carbon-carbon double bond (C=C), while alkanes only have single bonds (C-C).
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Revision notestopic notes
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Open revision notesRelated learning objectives
- Describe alkenes as hydrocarbons with a double carbon-carbon bond.
Structure and formulae of alkenes
- State the general formula for the homologous series of alkenes as CnH2n.
Structure and formulae of alkenes
- Explain that alkenes are unsaturated because they contain two fewer hydrogen atoms than the alkane with the same number of carbon atoms.
Structure and formulae of alkenes
- Recall the first four members of the homologous series of alkenes as ethene, propene, butene and pentene.
Structure and formulae of alkenes
- Represent alkene molecules in displayed, structural and molecular formula forms.
Structure and formulae of alkenes