CBSE  /  Class 8  /  Science  /  Synthetic Fibres and Plastics

  • 1. 
    The plastic which cannot be recycled is

  • jute
  • rayon
  • petrochemicals
  • bakelite

  • 2. 
    Bakelite is an example of

  • fibre
  • elastomer
  • nylon
  • thermosetting polymer

  • 3. 
    Which term is used for polymers made up of a large number of glucose units?

  • Protein
  • Fructose
  • Cellulose
  • Polyester

  • 4. 
    Which of the following is non-biodegradable?

  • Paper
  • Cotton cloth
  • Wood
  • Plastic

  • 5. 
    Which of the following is natural fibre obtained from plants?

  • Cotton
  • Wool
  • Rayon
  • Ketone
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