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IB Chemistry SL 2.4.5 Addition Polymers Questions

Use real exam questions to reverse-map alkene monomers, draw repeating units and explain C=C addition polymerization.

Syllabus
First assessment 2025
Course
Chemistry SL
Level
SL

Exam points

  • Deduce the alkene monomer from an addition-polymer repeating unit, preserving substituent positions and carbon connectivity.
  • Draw a section of an addition polymer with the correct carbon backbone, substituents, continuation bonds and stereochemical arrangement.
  • Identify addition polymerization and explain that the monomer C=C bond is consumed to form the polymer chain.

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Study 2.4.5—Addition polymers conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Chemistry SL 2.4.5 Addition Polymers Questions question 1

[Maximum number: 3]

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

Figure for Question IB Chemistry SL 2.4.5 Addition Polymers Questions 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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