Class Notes NCERT Solutions for CBSE Students
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.
