Wednesday , January 29 2020
Synthetic Fibres and Plastics

NCERT 8th Class (CBSE) Science: Synthetic Fibres and Plastics – Quiz

NCERT 8th Class (CBSE) Science: Synthetic Fibres and Plastics – Quiz

25 Multiple Choice Questions related to NCERT 8th Class (CBSE) Science: Synthetic Fibres and Plastics – Quiz:

  • Human-made materials are obtained from natural raw materials by chemical processes.
  • Polymers are materials with long chain molecules containing thousands of smaller molecules called monomers.
  • Synthetic fibres are made of polymers, many of them obtained from petroleum. They are cheaper and stronger than natural fibres.
  • Rayon is made from cellulose obtained from wood pulp. Nylon, polyester and acrylic are made entirely of chemicals and are strong, crease-resistant and absorb very little water.

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