DP Chemistry (first assessment 2025)

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Question 21M.2.SL.TZ1.d

Date	May 2021	Marks available	[Maximum mark: 1]	Reference code	21M.2.SL.TZ1.d
Level	SL	Paper	2	Time zone	TZ1
Command term	Deduce	Question number	d	Adapted from	N/A

d.

[Maximum mark: 1]

21M.2.SL.TZ1.d

A white solid was formed when ethene was subjected to high pressure.

Deduce the type of reaction that occurred.

[1]

Markscheme

«addition» polymerization ✔

Syllabus sections

Structure 2. Models of bonding and structure » Structure 2.4—From models to materials » Structure 2.4.5—Addition polymers form by the breaking of a double bond in each monomer. Represent the repeating unit of an addition polymer from given monomer structures.

Structure 2. Models of bonding and structure » Structure 2.4—From models to materials » Structure 2.4.6—Condensation polymers form by the reaction between functional groups in each monomer with the release of a small molecule. Represent the repeating unit of polyamides and polyesters from given monomer structures.