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Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 12 (25 MCQs)

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1. Lightweight and very strong fiber that is used to make rain resistant clothing, sleeping bags and carpeting.
2. A natural fibre?
3. Which of the following is a natural fibre thatcomes from plants?
4. Why is it not advisable to wear clothes made up of synthetic fibres in hot and humid weather?
5. Which of the following have more tensile strength?
6. Which of the following man-made fibers is made from a natural material called cellulose?
7. Which of the following is a fire-resistant plastic and is used to coat the uniforms of firemen?
8. Uniforms of firemen are made of ..... plastic to make them flame resistant.
9. Cellulose is made up of large number of ..... units.
10. Which is used as the monomer of Nylon?
11. ..... is stronger than steel wire.
12. Small units that combine to form a large single unit is called
13. Which one of the following is non-biodegradable material?
14. The synthetic fibres are also called .....
15. ..... fibre is called artificial silk.
16. Spandex is also known as
17. THE RAW MATERIAL USED IN MAKING RAYON IS:
18. Which of the following is blended fabric?
19. Who invented celluloid, the first commercially successful synthetic polymer in 1869?
20. Bakelite is used for making .....
21. We wear sweaters and use shawls or blankets in the winter. Many of these are actually not made from natural wool, though they appear to resemble wool. These are prepared from another type of synthetic fibre called
22. Name a synthetic fibre which is also known as polyamide
23. A synthetic fibre which looks like wool
24. This is not an advantage of plastic
25. Synthetic fiber made from coal, water and air is
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