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7.3 Synthetic and naturally occurring polymers

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Question 30

A quality-control chemist analyses the smallest repeating unit of an addition polymer.

Backbone carbonAtoms or groups attached to the backbone carbon
first carbonone H atom and one CH3\text{CH}_3CH3​ group
second carbonone H atom and one CH2CH3\text{CH}_2\text{CH}_3CH2​CH3​ group

The chemist considers two possible monomers:

P: CH3CH=CHCH2CH3\text{CH}_3\text{CH}=\text{CHCH}_2\text{CH}_3CH3​CH=CHCH2​CH3​

Q: CH2=C(CH3)CH2CH3\text{CH}_2=\text{C}(\text{CH}_3)\text{CH}_2\text{CH}_3CH2​=C(CH3​)CH2​CH3​

Explain which possible monomer, P or Q, was used to make the polymer.

[3]
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7.3 Synthetic and naturally occurring polymers Questions

  1. GCSE
  2. /Chemistry
  3. /7.3 Synthetic and naturally occurring polymers

94 exam-style questions on AQA GCSE Chemistry 7.3 Synthetic and naturally occurring polymers, covering 7.3.1 Addition polymerisation, 7.3.2 Condensation polymerisation, 7.3.3 Amino acids, and 7.3.4 DNA (deoxyribonucleic acid) and other naturally occurring polymers. Each one has a worked solution and a mark scheme showing where the marks go.

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