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Introduction to organic chemistry
This topic provides the language and reaction-mechanism foundations for organic chemistry.
8
Objectives
40
Flashcards
40
Questions
90 min
Study time
AQAA LevelChemistryOrganic chemistry
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Syllabus checklist
What you need to know
8 objective pages available
Nomenclature and formulae4 objectives
- Use IUPAC rules to name organic compounds in the specification.
- Represent organic compounds using molecular, empirical, structural, displayed and skeletal formulae.
- Identify functional groups in organic molecules.
- Distinguish homologous series from functional groups.
Isomerism and reaction mechanisms4 objectives
- Identify structural isomers.
- Use curly arrows to represent electron movement in mechanisms.
- Define nucleophile, electrophile and free radical.
- Distinguish addition, substitution, elimination and polymerisation reactions.
Key terms
IUPAC nomenclaturefunctional groupmolecular formulastructural formulahomologous seriesstructural isomerscurly arrownucleophileelectrophileaddition reactionsubstitution reaction
Exam tips
- Master IUPAC Naming: Explain clearly by familiarize yourself with the IUPAC naming rules for organic compounds. Practice naming various structures to reinforce your understanding. Link the point to Nomenclature and formulae, then state the evidence, calculation, mechanism, observation, or conclusion required by the question.
- Mastering Skeletal Formulae: Explain clearly by practice drawing skeletal formulae for various organic compounds to enhance your understanding of molecular structure. Link the point to Nomenclature and formulae, then state the evidence, calculation, mechanism, observation, or conclusion required by the question.
Common mistakes
- Incorrect Naming of Organic Compounds: To correctly name branched alkanes, identify the longest carbon chain as the parent chain, number the chain to give the substituents the lowest possible numbers, and use prefixes for the substituents. For example, for 2-methylpentane, the longest chain is pentane with a methyl group on the second carbon.
- Misidentifying Structural Formulae: Remember that a structural formula shows how atoms are arranged in a molecule, while a molecular formula only indicates the number of each type of atom present. For example, C2H6 is the molecular formula for ethane, but its structural formula is CH3-CH3, showing the arrangement of atoms.
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