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IB Chemistry HL 3.2.7 Stereoisomers Question Bank

Practise HL 3.2.7 stereoisomers by reading structural and spectroscopic evidence, then selecting the explanation supported by the data.

Syllabus
First assessment 2025
Course
Chemistry HL
Level
HL

Exam points

  • identify the diagnostic structural or spectral feature
  • match peaks, splitting or stereochemical relationships to the correct structure
  • combine independent evidence before making the final deduction

3.2.7 (HL)—Stereoisomers question 1

[Maximum number: 3]

Organic compounds have many industrial applications.

Question (a)

(a)

The chloroalkene with the formula C4H7Cl\mathrm{C}_{4} \mathrm{H}_{7} \mathrm{Cl} can exist as several stereoisomers.

[ 3 ]

Question (i)

(i)

Draw the structural formula of cis-1-chlorobut-2-ene.

[ 1 ]

Question (ii)

(ii)

Deduce the structure of a chloroalkene, C4H7Cl\mathrm{C}_{4} \mathrm{H}_{7} \mathrm{Cl}, that can exhibit optical isomerism, and identify the chiral carbon atom with an asterisk (*).

[ 2 ]
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