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IB Chemistry SL 2.4.5 Addition polymers Question Bank

Practise IB Chemistry SL 2.4.5 by identifying alkene monomers and drawing repeating units for addition polymers.

Syllabus
First assessment 2025
Course
Chemistry SL
Level
SL

Exam points

  • Deduce an alkene monomer from a displayed addition-polymer repeating unit.
  • Draw a section of an addition polymer with the correct carbon backbone and substituents.
  • Identify the addition-polymerization reaction and explain which double bond is consumed.

2.4.5—Addition polymers question 1

[Maximum number: 3]

Phenylethene (styrene) is produced from ethylbenzene in a gas-phase equilibrium.

Figure for Question 2.4.5—Addition polymers question 1 — IB Chemistry SL

Question (a)

(a)

Complete the diagram to show the repeating unit of polystyrene.

Figure for Question (a) — IB Chemistry SL
[ 2 ]

Question (b)

(b)

State the type of polymerization that occurs.

[ 1 ]
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