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CAIE A-Level Chemistry AS 13.4.2 Stereoisomerism and Its Division Questions

Practise defining stereoisomerism and distinguishing geometrical cis/trans arrangements from optical isomers with chiral centres in CAIE 9701 questions.

Syllabus
2028–2030
Course
Chemistry 9701
Level
AS

Exam points

  • define stereoisomers as molecules with the same structural formula but different three-dimensional arrangements
  • identify geometrical (cis/trans) isomerism from restricted rotation about C=C and two different groups on each double-bonded carbon
  • identify optical isomerism from a chiral centre and represent non-superimposable mirror-image molecules

CAIE A-Level Chemistry AS 13.4.2 Stereoisomerism and Its Division Questions question 1

[Maximum number: 2]

Fig. 4.1 shows a possible synthesis of propene, C3H6\mathrm{C}_{3} \mathrm{H}_{6}.

Fig. 4.1

Fig. 4.1

Under suitable conditions, propene polymerises to form poly(propene).

Poly(propene) exhibits stereoisomerism.

Define stereoisomerism.

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