This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 3 Synthetic Fibres And Plastics – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the other name of Acrylic? A) Morphic. B) Orlon. C) Lycra. D) Elastane. Show Answer Correct Answer: B) Orlon. 2. PET is a A) Polyester. B) Polyamide. C) Nylon. D) Thermosetting plastic. Show Answer Correct Answer: A) Polyester. 3. The other name for artificial silk? A) Nylon. B) Rayon. C) Acrylic. D) Polyester. Show Answer Correct Answer: B) Rayon. 4. This warm feeling fiber is used to make machine washable sweaters and blankets. A) Rayon. B) Spandex. C) Nylon. D) Acrylic. Show Answer Correct Answer: D) Acrylic. 5. Cotton is a polymer made up of A) Silk. B) Cellulose. C) Pectin. D) Leptin. Show Answer Correct Answer: B) Cellulose. 6. Polyester is a synthetic fiber in which the polymer units are linked by ester groups. Which of the following is not a property of polyester? A) Polyester fibers are weaker in strength than nylon fibers. B) Polyester fiber is not attacked by moths and ordinary chemicals. C) Polyester is a thermoplastic polymer. D) Polyester fibers are softer than nylon fibers. Show Answer Correct Answer: A) Polyester fibers are weaker in strength than nylon fibers. 7. ..... was prepared from coal, water and air. A) Rayon. B) Nylon. C) Bakelite. D) Acrylic. Show Answer Correct Answer: B) Nylon. 8. The fibres which are obtained from the natural sources are called A) Artificial fibres. B) Synthetic fibres. C) Natural fibres. D) Man made fibres. Show Answer Correct Answer: C) Natural fibres. 9. Which is the strongest fibre in the following: A) Wool. B) Nylon. C) Terrylene. D) Acrylic. Show Answer Correct Answer: B) Nylon. 10. Which of the following is not a property of nylon? A) Nylon is a thermoplastic polymer. B) Nylon fibers are fairly strong and elastic. C) Nylon fibers are lightweight and lustrous. D) It is cheaper than natural silk. Show Answer Correct Answer: D) It is cheaper than natural silk. 11. Which of the following represents the correct match for items in Column A with those in Column B.Column A-Column BI. Nylon-(i) ThermoplasticII. PVC-(ii) Thermosetting plasticIII. Bakelite-(iii) Fibrechoose the option A) I-(II), II-(III), Iii-(I). B) I-(iii), II-(i), III-(ii). C) I-(ii), II-(i), III-(iii). D) I-(iii), II-(ii), III-(i). Show Answer Correct Answer: D) I-(iii), II-(ii), III-(i). 12. From which part of sheep is wool made from? A) Skin. B) Toes. C) Fleece. D) All the above. Show Answer Correct Answer: C) Fleece. 13. Polythene and PVC are examples of A) A) Bio degradable substance. B) B) Thermoplastics. C) All the above. D) None of the above. Show Answer Correct Answer: B) B) Thermoplastics. 14. Which of the following is NOT a natural polymer? A) Natural rubber. B) Polyester. C) Protein. D) Starch. Show Answer Correct Answer: B) Polyester. 15. Nylon is obtained by A) Treatment of wood pulp. B) Mixing coal, air and water. C) Solidifying water. D) Mixing acids and bases. Show Answer Correct Answer: B) Mixing coal, air and water. 16. The Material Similar To Silk In Appearance Is: A) Nylon. B) Rayon. C) Polyester. D) Terylene. Show Answer Correct Answer: B) Rayon. 17. Bakelite is used to make ..... A) Handles of cookware. B) Crockeries. C) Floor tiles. D) Fireman clothing. Show Answer Correct Answer: A) Handles of cookware. 18. Polymers are made up of small units called A) Layers. B) Molecules. C) Cells. D) Monomers. Show Answer Correct Answer: D) Monomers. 19. Which one is non-biodegradable? A) (a) Paper. B) B) Cotton cloth. C) (c) Wood. D) (d) Plastic. Show Answer Correct Answer: D) (d) Plastic. 20. PET is a plastic form of ..... A) Rayon. B) Nylon. C) Polyester. D) Spandex. Show Answer Correct Answer: C) Polyester. 21. Select True or False:An advantage of natural fibres over synthetic fibres is that natural fibres are more durable. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 22. Which of the following is thermosetting polymer A) Neoprene. B) PVC. C) Nylon-6, 6. D) Bakelite. Show Answer Correct Answer: D) Bakelite. 23. Which of the following polymer shows thermal stability and chemical inertness due to its high C-C bond energy A) Wool. B) Cotton. C) Teflon. D) Polymer. Show Answer Correct Answer: C) Teflon. 24. Polythene is produced by A) Isomerization. B) Hydrogenation. C) Polymerisation. D) All of the above. Show Answer Correct Answer: C) Polymerisation. 25. Which of the following groups contains all synthetic substances A) Nylon, terylene, wool. B) Cotton, polysters, rayon. C) PVC, polythene, bakelite. D) None of the above. Show Answer Correct Answer: C) PVC, polythene, bakelite. 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