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Lessons for this topic haven’t been written yet. The objectives below show exactly what the syllabus expects, so you can plan with them in the meantime.
What Cambridge says you should be able to do, in our words. Codes are the topic number plus the objective’s position.
Describe structural isomerism and its division into chain, positional and functional group isomerism.
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Describe stereoisomerism and its division into geometrical (cis/trans) and optical isomerism.
Use of E/Z nomenclature is acceptable but is not required.
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Describe geometrical (cis/trans) isomerism in alkenes, and explain its origin in terms of restricted rotation due to the presence of π bonds.
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Explain what is meant by a chiral centre and that such a centre gives rise to two optical isomers (enantiomers).
Candidates should appreciate that compounds can contain more than one chiral centre, but knowledge of meso compounds, or of nomenclature such as diastereoisomers, is not required.
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Identify chiral centres and geometrical (cis/trans) isomerism in a molecule of given structural formula, including cyclic compounds.
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Deduce the possible isomers for an organic molecule of known molecular formula.
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