CAIE A-Level Chemistry AS 20 Polymerisation Questions

Practise converting monomers to addition-polymer repeat units and recovering monomer structures from polymers, recognising alkene addition and non-biodegradable products.

Covered syllabus points

20.1 Addition polymerisation

[Maximum number: 1]

Which of the molecular formulae represent at least one compound that can undergo addition polymerisation?
1 $\mathrm{C}_{4} \mathrm{H}_{8}$
2 $\mathrm{C}_{2} \mathrm{H}_{3} \mathrm{C} l$
3 $\mathrm{C}_{3} \mathrm{H}_{6} \mathrm{O}$

A

1, 2 and 3 are correct

B

1 and 2 only are correct

C

2 and 3 only are correct

D

1 only is correct

[Maximum number: 1]

An addition polymer is made from monomer Z.
monomer Z

Figure for Question 2 — CAIE A-Level Chemistry AS

What is the structure of the polymer made from this monomer?

A

Figure for Question 2 — CAIE A-Level Chemistry AS — Option A

B

Figure for Question 2 — CAIE A-Level Chemistry AS — Option B

C

Figure for Question 2 — CAIE A-Level Chemistry AS — Option C

D

Figure for Question 2 — CAIE A-Level Chemistry AS — Option D

[Maximum number: 1]

A section showing two repeat units of an addition polymer is shown.

Figure for Question 3 — CAIE A-Level Chemistry AS

What is the identity of the monomer that produced this polymer?

A

2-chloro-3-methylbutane

B

2-chloro-3-methylbut-2-ene

C

2-chloropent-2-ene

D

2,4-dichloro-3,3,4,5-tetramethylhexane

[Maximum number: 1]

Which statement about PVC is correct?

A

Combustion products of PVC are very alkaline and harmful to breathe in.

B

The empirical formula of PVC is the same as the empirical formula of the monomer.

C

Molecules of PVC are unsaturated.

D

The repeat unit of PVC is $\left(\mathrm{CH}_{2} \mathrm{CCl}_{2}\right)$ .

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