Polymers

Polymers Quiz

Spec 11.8 · Cambridge IGCSE Chemistry: Quiz

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  1. 1. What is the key difference between addition polymerisation and condensation polymerisation?

    • A. Addition polymerisation joins monomers without losing atoms, whilst condensation polymerisation releases small molecules like water
    • B. Addition polymerisation is used for alkenes, whilst condensation polymerisation is used for alcohols only
    • C. Addition polymerisation creates stronger polymers than condensation polymerisation
    • D. Addition polymerisation requires a catalyst, whilst condensation polymerisation does not

  2. 2. Poly(ethene) is formed from ethene monomers through addition polymerisation. What happens to the C=C double bond during this process?

    • A. The double bond remains unchanged and water is released
    • B. The double bond breaks and the monomers join with single bonds between carbons
    • C. The double bond becomes a triple bond
    • D. The double bond moves to a different location on the polymer

  3. 3. A polyamide is formed from a dicarboxylic acid with a diamine. Which of the following correctly describes the linkage formed between these monomers?

    • A. An ester linkage (-COO-) is formed between all monomers
    • B. An amide linkage (-CONH-) is formed, and water molecules are released
    • C. An ether linkage (-O-) is formed with no by-products
    • D. A peptide linkage (-CONH-) is formed with oxygen released as a gas

  4. 4. PET (polyethylene terephthalate) is a polyester formed from terephthalic acid and ethylene glycol. What is an environmental advantage of PET compared to other plastics?

    • A. It does not accumulate in oceans or landfills
    • B. It can be converted back into monomers and re-polymerised, allowing recycling
    • C. It produces no toxic gases when burned
    • D. It biodegrades completely within one year

  5. 5. Proteins are natural polyamides formed from amino acid monomers. What structural feature do amino acids possess that allows them to form amide linkages with one another?

    • A. Each amino acid has a carboxyl group and an amino group, allowing continuous chain formation
    • B. Each amino acid has two amine groups that react with carboxylic acids in the polymer chain
    • C. Each amino acid has an ester group that links directly to other amino acids
    • D. Each amino acid has a double bond that opens up during polymerisation

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