CAIE A-Level Chemistry 13.4.3 Geometrical Isomerism in Alkenes
Practise deciding whether an alkene shows cis/trans isomerism and drawing the two arrangements around its C=C bond.
- Syllabus
- 2028–2030
- Course
- Chemistry 9701
- Level
- AS
Exam points
- check that each carbon of the C=C bond carries two different substituents before drawing isomers
- draw corresponding groups on the same side for cis and on opposite sides for trans without rotating C=C
- explain that the pi bond prevents free rotation, so the two spatial arrangements cannot interconvert freely