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Macromolecules

Written by Dr. Ayesha Nadeem (Chemistry)

Class 12 · Chemistry · 8 questions

Name: ____________________   Date: ____________

  1. Polythene is made from:

    • A Methane
    • B Ethene
    • C Propane
    • D Ethanol

  2. Nylon is formed by:

    • A Cracking
    • B Condensation polymerisation
    • C Addition polymerisation
    • D Distillation

  3. Natural rubber is a polymer of:

    • A Ethene
    • B Glucose
    • C Styrene
    • D Isoprene

  4. Proteins are polymers of:

    • A Fatty acids
    • B Amino acids
    • C Nucleotides
    • D Sugars

  5. PVC is made from the monomer:

    • A Ethene
    • B Chloroethene
    • C Styrene
    • D Propene

  6. Bakelite is a:

    • A Metal
    • B Natural fibre
    • C Thermosetting plastic
    • D Thermoplastic only

  7. Which is a natural polymer?

    • A Nylon
    • B Polythene
    • C Cellulose
    • D PVC

  8. Terylene (polyester) is made by:

    • A Condensation polymerisation
    • B Cracking
    • C Addition polymerisation
    • D Hydration

Answer key

1. B, 2. B, 3. D, 4. B, 5. B, 6. C, 7. C, 8. A

  1. Many ethene molecules join by addition polymerisation.

  2. Water is lost as the monomers join.

  3. Natural rubber is polyisoprene.

  4. Peptide bonds join amino acids.

  5. Vinyl chloride, or chloroethene, forms PVC.

  6. It cannot be remoulded after setting.

  7. Cellulose is made by plants.

  8. Water is lost as the ester links form.