The fibre that is synthesised from chemicals in the industries is known as synthetic fibre. They are firm and durable and are used to make dry-fit clothes. Rayon, nylon, acrylic and plastic are examples of synthetic fibres. They are also known as manufactured or artificial fibre.
Plastic is an example of synthetic fibres. The sequence arrangement of units in plastic is not identical. It can be linear or cross-linked.
Download Class 8 Chemistry Worksheet on Chapter 3 Synthetic Fibres and Plastics Set 3 PDF
CBSE Class 8 Chemistry Chapter 3 Synthetic Fibres and Plastics Worksheet – Set 3
Q1. What is the primary component of plant fibre?
(a) Cellulose
(b) Protein
(c ) Cablum
(d) None of the above
Q2. Who is the leading producer of rayon?
(a) India
(b) The United States of America
(c ) The United Kingdom
(d) None of the above
Q3. Which of the following is used for making parachutes and ropes?
(a) Nylon
(b) Rayon
(c ) Jute
(d) None of the above
Q4. What is the chemical name of cotton?
(a) Conon
(b) Cellulose
(c ) Cablum
(d) None of the above
Q5. Rayon was discovered in _______.
(a) England
(b) The United States of America
(c ) Australia
(d) None of the above
Q6. What is a natural fibre? Give some examples.
Q7. What do you understand by the term polymer?
Q8. What do you understand by the term plasticity?
Q9. Why are plastics bucket favoured against iron buckets?
Q10. How will you differentiate natural fibre from synthetic fibre?
Q11. What are the composition of poly wool and a poly cot?
Q12. How will you differentiate thermoplastic from thermosetting plastic?
Q13. Is acrylic more famous than wool? If yes, Why?
Q14. What is plastic? What are the pros of using artificial fibres?
Q15. What is rayon? Enlist its properties and uses.
Q16. (a) What do you understand by cellulose?
(b) How can you manufacture artificial fibre?
Q17. Name a cheap alternative to wool. Is it similar to wool?
Q18. Why are plastics used in microwave cookware?
Q19. Why should we decrease the usage of plastics?
Q20. State characteristics of polyester.
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