Lesson 6.2.3

6.2.3 Polyesters and polyamides Quiz: OCR Chemistry, Unit 5

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 6.2.3, Polyesters and polyamides: 20 multiple choice questions for the OCR Chemistry (H432), Unit 5: Organic chemistry and analysis, written with Revision Ninja.

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The 20 questions

  1. What type of polymerisation forms polyesters and polyamides?

    • Condensation polymerisation
    • Free radical polymerisation
    • Ring-opening polymerisation
    • Addition polymerisation

  2. What small molecule is eliminated each time an ester link forms in a polyester by condensation of a diol and a dicarboxylic acid?

    • Water
    • Ammonia
    • Hydrogen
    • Carbon dioxide

  3. Which pair of monomer types reacts together to form a synthetic polyamide?

    • Diol and dicarboxylic acid
    • Amino acid and diol
    • Diamine and diol
    • Diamine and dicarboxylic acid

  4. Which functional group linkage in a polyamide is broken during hydrolysis?

    • Glycosidic link
    • Ether link
    • Ester link
    • Amide link

  5. Which linkage in a polyester is broken during acid or alkaline hydrolysis?

    • Ether link
    • Amide link
    • Peptide link
    • Ester link

  6. What is the repeat unit of poly(ethene)?

    • -CH2CHCl-
    • -CH2-CH(CH3)-
    • -CH2CH2-
    • -CH=CH-

  7. What is the monomer for the section of addition polymer -[CH2-CH(CH3)]-?

    • Propene, CH2=CHCH3
    • Ethene, CH2=CH2
    • But-1-ene, CH2=CHCH2CH3
    • Propane, CH3CH2CH3

  8. Which type of polymerisation forms poly(chloroethene), PVC, from chloroethene?

    • Hydrolysis
    • Addition polymerisation
    • Esterification
    • Condensation polymerisation

  9. A polyester is made from ethane-1,2-diol and benzene-1,4-dicarboxylic acid. How many molecules of water are eliminated per repeat unit?

    • 2
    • 4
    • 3
    • 1

  10. Which alcohol monomer is required to form the polyester -[O-CH2CH2-O-CO-C6H4-CO]-?

    • Ethane-1,2-diol
    • Ethane-1,1-diol
    • Propane-1,3-diol
    • Ethanol

  11. Nylon-6,6 is made from hexane-1,6-diamine and hexanedioic acid. What is the small molecule eliminated per amide link?

    • Oxygen
    • Water
    • Carbon dioxide
    • Hydrogen chloride

  12. What organic products form from the alkaline hydrolysis of a polyester?

    • Ester and sodium hydroxide
    • Diol and carboxylic acid
    • Diol and carboxylate salt
    • Dicarboxylic acid and alcohol

  13. What product is formed at the nitrogen group during the acid hydrolysis of a polyamide?

    • Carboxylate salt
    • Free amine
    • Ammonium salt
    • Acyl chloride

  14. What is the repeat unit of an addition polymer formed from tetrafluoroethene, CF2=CF2?

    • -CF2CF2CF2-
    • -CF=CF-
    • -CF2-
    • -CF2CF2-

  15. Which amine monomer is used to synthesize the polyamide -[NH-(CH2)6-NH-CO-(CH2)4-CO]-?

    • Propane-1,3-diamine
    • Hexan-1-amine
    • Hexane-1,6-diamine
    • Hexane-1,4-diamine

  16. What type of polymerisation occurs when a diamine reacts with a diacyl chloride?

    • Addition polymerisation
    • Chain-growth polymerisation
    • Condensation polymerisation
    • Free radical polymerisation

  17. Why is the alkaline hydrolysis of a polyester an irreversible reaction?

    • Diol evaporates rapidly
    • Carboxylate salt forms
    • Ester link reforms
    • Acid catalyst decomposes

  18. What key feature distinguishes condensation polymerisation from addition polymerisation?

    • No molecules eliminated
    • Small molecule eliminated
    • Double bonds broken
    • Free radicals formed

  19. A polyamide has the repeat unit -[NH-(CH2)6-NH-CO-(CH2)4-CO]-. How many amide links are in one repeat unit?

    • 2
    • 6
    • 1
    • 4

  20. What class of polymer is represented by -[O-CH2CH2-O-CO-C6H4-CO]-?

    • Polyalkene
    • Polyester
    • Polyamide
    • Polyether

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