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Macromolecules
8 Class 12 Chemistry questions with answers and explanations.
Printable worksheet with answer key
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Polythene is made from:
- 1 Methane
- 2 Ethene
- 3 Propane
- 4 Ethanol
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Correct answer: Ethene
Many ethene molecules join by addition polymerisation.
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Nylon is formed by:
- 1 Cracking
- 2 Condensation polymerisation
- 3 Addition polymerisation
- 4 Distillation
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Correct answer: Condensation polymerisation
Water is lost as the monomers join.
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Natural rubber is a polymer of:
- 1 Ethene
- 2 Glucose
- 3 Styrene
- 4 Isoprene
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Proteins are polymers of:
- 1 Fatty acids
- 2 Amino acids
- 3 Nucleotides
- 4 Sugars
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PVC is made from the monomer:
- 1 Ethene
- 2 Chloroethene
- 3 Styrene
- 4 Propene
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Correct answer: Chloroethene
Vinyl chloride, or chloroethene, forms PVC.
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Bakelite is a:
- 1 Metal
- 2 Natural fibre
- 3 Thermosetting plastic
- 4 Thermoplastic only
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Correct answer: Thermosetting plastic
It cannot be remoulded after setting.
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Which is a natural polymer?
- 1 Nylon
- 2 Polythene
- 3 Cellulose
- 4 PVC
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Terylene (polyester) is made by:
- 1 Condensation polymerisation
- 2 Cracking
- 3 Addition polymerisation
- 4 Hydration
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Correct answer: Condensation polymerisation
Water is lost as the ester links form.