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Class 8 Science Practice Test: Synthetic Fibres and Plastics
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Class 8 Science Practice Test: Synthetic Fibres and Plastics
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25 Questions

1. The synthetic plastic used for making insulation cover in electrical wires/cables is
2. Which of the following is known as artificial silk?
3. Plastic bags are generally made from which plastic?
4. The non-stick coating on pans and other cooking utensils is made from
5. Polywool is a mixture of which substances?
6. Polymers are made up of small units called
7. Synthetic fibres are
8. Polycarbonate is used to make
9. Which of the following are made from thermosetting plastic?
10. Plastics that retain their plasticity on repeated heating are called
11. A plastic which can be softened on heating and moulded repeatedly is called
12. The first fully synthetic plastic was
13. The polymers in which smaller units are linked to each other in straight arrangement are called
14. Rayon clothes are comfortable to wear in
15. The raw materials used in making nylon are
16. Which material is used for making bottles and jars?
17. Plastic that can resist fire is
18. Which of the following is the strongest fibre?
19. Which fibre is used as artificial wool?
20. In which year was nylon made?
21. Common variety of polyester is
22. The property of materials by which they can be moulded into any shape is called
23. The purest natural form of cellulose is
24. Which of the following is synthetic fibre?
25. Synthetic plastics lead to

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