This quiz works best with JavaScript enabled. Home > Cbse > Class 8 > Science > Synthetic Fibres And Plastics > Class 8 Science Chapter 3 Synthetic Fibres And Plastics – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 5 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following has ester linkages? A) Terylene. B) Bakelite. C) PVC. D) Nylon. Show Answer Correct Answer: A) Terylene. 2. In which country was rayon first time synthesised? A) London. B) England. C) Asia. D) USA. Show Answer Correct Answer: B) England. 3. Iron rusts when it is exposed to ..... and ..... A) Oxygen, Fire. B) Air, Fire. C) Fire, Water. D) Air, Water. Show Answer Correct Answer: D) Air, Water. 4. Which Is A Thermosetting Plastic? A) Polythene. B) Melamine. C) Nylon. D) PVC. Show Answer Correct Answer: B) Melamine. 5. Which of the following is used to make conveyor belts? A) Rayon. B) Acrylon. C) PET. D) Terylene. Show Answer Correct Answer: D) Terylene. 6. Cellulose extracted from agricultural products is treated with ..... and ..... in the process of making rayon. A) Caustic soda and carbon disulphide. B) Formaldehyde and amino acids. C) All the above. D) None of the above. Show Answer Correct Answer: A) Caustic soda and carbon disulphide. 7. ..... is polyester used for making bottles, utensils, films. A) Leather. B) PET. C) Nylon. D) Plastic. Show Answer Correct Answer: B) PET. 8. Low density Polythene is used to make ..... A) Bags. B) Containers. C) Dustbins. D) Flexible pipes. Show Answer Correct Answer: D) Flexible pipes. 9. PET is a type of A) Polyester. B) Acrylic. C) Nylon. D) Rayon. Show Answer Correct Answer: A) Polyester. 10. Property of Polyster A) Wrinkly. B) Lustrous. C) Crisp. D) All of these. Show Answer Correct Answer: C) Crisp. 11. If a synthetic fibre and a natural fibres of same size are soaked in two different mugs having same amount of water for 20 minuets and taken out. which of the following is true regarding the volume of the water leftover in the mugs? A) Volume in both mugs will be same. B) Mug in which synthetic fibre was soaked has more volume of water leftover. C) Mug in which natural fibre was soaked has more volume of water leftover. D) Nothing can be said. Show Answer Correct Answer: B) Mug in which synthetic fibre was soaked has more volume of water leftover. 12. Polyester synthesis takes place in ..... (Atmospheric conditions) A) Low pressure. B) Very high pressure. C) Very low pressure. D) High pressure. E) Vacuum. Show Answer Correct Answer: E) Vacuum. 13. ..... , ..... and ..... are 3 main variants of acrylion. A) Acrylonitrile, vinyl acetate and methyl acrylate. B) Acrilovinyl chloride, vinylidene chloride or vinyl bromide $III$. C) Acrylodimethylformamide, vinylidene chloride and methyl acrylate. D) None of the above. Show Answer Correct Answer: A) Acrylonitrile, vinyl acetate and methyl acrylate. 14. What is the main source of plastics? A) Polyester. B) Thermoplastics. C) Plastosources. D) Crude oil. Show Answer Correct Answer: D) Crude oil. 15. What are the advantages of synthetic? A) Cheaper, stronger. B) Not renewable. C) All the above. D) None of the above. Show Answer Correct Answer: A) Cheaper, stronger. 16. Expand PP of one of the plastic A) Polypropylene. B) Polypropene. C) Polyvinyl chloride. D) Polypropyne. Show Answer Correct Answer: A) Polypropylene. 17. Plastics are generally made from A) Coal. B) Kerosene. C) Plant products. D) Petroleum. Show Answer Correct Answer: D) Petroleum. 18. Which of the following properties of nylonmake it most convenient to use? A) It is soft, strong and heavy. B) It is strong, elastic and light. C) It is hard, inexpensive and strong. D) None of the above. Show Answer Correct Answer: B) It is strong, elastic and light. 19. When was Nylon made A) 1931. B) 1951. C) 2021. D) 1941. Show Answer Correct Answer: A) 1931. 20. Which of the following is an example of thermosetting plastics? A) Polythene. B) Nylon. C) PVC. D) Bakelite. Show Answer Correct Answer: D) Bakelite. 21. Which of the following is correct about Polymerization? A) Process of joining Polymers to form Monomer. B) Process of Joining Monomers to form Polymer. C) Process of making Synthetic fibres from petrochemicals. D) None of these. Show Answer Correct Answer: B) Process of Joining Monomers to form Polymer. 22. It is known that Polyester melts n heating and cotton burns without melting.Which of the following is true? A) Polyester and cotton are synthetic fibre. B) Polyester is artificial and cotton is synthetic fibre. C) Polyester is synthetic and cotton is artificial fibre. D) Polyester is synthetic and cotton is natural fibre. Show Answer Correct Answer: D) Polyester is synthetic and cotton is natural fibre. 23. How much can a Lycra cloth stretch? A) 700%. B) 600%. C) 800%. D) 500%. Show Answer Correct Answer: D) 500%. 24. Lightweight and very strong fiber that is used to make rain resistant clothing, sleeping bags and carpeting. A) Nylon. B) Acetate. C) Rayon. D) Polyester. Show Answer Correct Answer: A) Nylon. 25. Melamine is ..... A) Fibre. B) Elastomer. C) Thermoplastic polymer. D) Thermosetting polymer. Show Answer Correct Answer: D) Thermosetting polymer. 26. A natural fibre? A) Polythene. B) Wool. C) PVC. D) Nylon. Show Answer Correct Answer: B) Wool. 27. Which of the following is a natural fibre thatcomes from plants? A) Cotton. B) Rayon. C) Silk. D) Polyester. Show Answer Correct Answer: A) Cotton. 28. Why is it not advisable to wear clothes made up of synthetic fibres in hot and humid weather? A) Synthetic fibres catch fire very easily. B) Synthetic fibres do not absorb sweat. C) Synthetic fibres stick to the body. D) Both (b) and (c). Show Answer Correct Answer: D) Both (b) and (c). 29. Which of the following have more tensile strength? A) Silk. B) Nylon. C) Rayon. D) Spandex. Show Answer Correct Answer: B) Nylon. 30. Which of the following man-made fibers is made from a natural material called cellulose? A) Nylon. B) Acrylic. C) Polyester. D) Rayon. Show Answer Correct Answer: D) Rayon. 31. Which of the following is a fire-resistant plastic and is used to coat the uniforms of firemen? A) PVC. B) Bakelite. C) Teflon. D) Melamine. Show Answer Correct Answer: D) Melamine. 32. Uniforms of firemen are made of ..... plastic to make them flame resistant. A) Teflon. B) Melamine. C) PVC. D) Bakelite. Show Answer Correct Answer: B) Melamine. 33. Cellulose is made up of large number of ..... units. A) Dacron. B) Sucrose. C) Glucose. D) Amino acids. Show Answer Correct Answer: C) Glucose. 34. Which is used as the monomer of Nylon? A) Amide Molecules. B) Ester Molecules. C) Ethyl Methacrylate Molecules. D) None of these. Show Answer Correct Answer: A) Amide Molecules. 35. ..... is stronger than steel wire. A) Silk thread. B) Plastic thread. C) Nylon fibre. D) Cotton fibre. Show Answer Correct Answer: C) Nylon fibre. 36. Small units that combine to form a large single unit is called A) Polymer. B) Monomer. C) Fibre. D) None of the above. Show Answer Correct Answer: A) Polymer. 37. Which one of the following is non-biodegradable material? A) Metal cans. B) Paper. C) Wood. D) Cotton cloth. Show Answer Correct Answer: A) Metal cans. 38. The synthetic fibres are also called ..... A) Man-made fibres. B) Plant fibres. C) Nylon fibres. D) None of these. Show Answer Correct Answer: A) Man-made fibres. 39. ..... fibre is called artificial silk. A) Rayon. B) Polyester. C) Chemical silk. D) Nylon. Show Answer Correct Answer: A) Rayon. 40. Spandex is also known as A) Elastane. B) Lycra. C) Both a and b. D) None of these. Show Answer Correct Answer: C) Both a and b. 41. THE RAW MATERIAL USED IN MAKING RAYON IS: A) ETHENE. B) PVC. C) ESTER. D) WOOD PULP. Show Answer Correct Answer: D) WOOD PULP. 42. Which of the following is blended fabric? A) Terylene. B) Polywool. C) Bakelite. D) Polythene. Show Answer Correct Answer: B) Polywool. 43. Who invented celluloid, the first commercially successful synthetic polymer in 1869? A) Alexander Parkes. B) Joseph Swan. C) John Hyatt. D) Wallace Carothers. Show Answer Correct Answer: C) John Hyatt. 44. 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 A) Nylon. B) Polyester. C) Acrylic. D) Rayon. Show Answer Correct Answer: C) Acrylic. 45. Name a synthetic fibre which is also known as polyamide A) Cellulose. B) Linen. C) Nylon. D) Plastic. Show Answer Correct Answer: C) Nylon. 46. A synthetic fibre which looks like wool A) Rayon. B) Acrylic. C) Nylon. D) Polyster. Show Answer Correct Answer: B) Acrylic. 47. This is not an advantage of plastic A) Cheap. B) Made up of chemicals. C) Easily available. D) Light. Show Answer Correct Answer: B) Made up of chemicals. 48. Synthetic fiber made from coal, water and air is A) Acrylic. B) Nylon. C) Rayon. D) Polyester. Show Answer Correct Answer: B) Nylon. 49. Which of the following is used in sports wear? A) Nylon. B) Spandex. C) Rayon. D) None of these. Show Answer Correct Answer: B) Spandex. 50. Petrochemicals are A) Mixtures of petrol and chemical fertilizer. B) Materials obtained from petroleum refining. C) Mixtures of coal and petrol. D) Mixtures of wood and chemicals. Show Answer Correct Answer: B) Materials obtained from petroleum refining. 51. I'am colourful and strong as steel.I can make you reach the peak of a mountain and also help you to reach your office with dry clothes.Who am I? A) Silk. B) Nylon. C) Cotton. D) Polyester. Show Answer Correct Answer: B) Nylon. 52. Rayon was obtained by chemical treatment of ..... ? (Rayon ..... ke chemical treatment se milta hei ) A) Wood pulp. B) Wood plup. C) Silk worn. D) Wooo worm. E) Flex. Show Answer Correct Answer: A) Wood pulp. 53. Burning of plastic releases A) Toxic gases. B) Waste gases. C) Natural gases. D) None of the above. Show Answer Correct Answer: A) Toxic gases. 54. I saw a cow on the street yesterday swallowing a plastic bag.Today I saw the cow choking to death but was saved by a Vet.What do you think is the reason for this? A) Human activities leading to soil erosion. B) Human activities leading to pollution. C) Human activities. D) Human activities leading to over population. Show Answer Correct Answer: B) Human activities leading to pollution. 55. Which one of the following can be semi-synthetic fibre? A) Rayon. B) PET. C) Nylon. D) Acrylic. Show Answer Correct Answer: A) Rayon. 56. We can make socks, ropes, tents, toothbrushes, car seat belts, sleeping bags and curtains from ..... A) Acrylic. B) Plants. C) Nylon. D) Polywool. Show Answer Correct Answer: C) Nylon. 57. The first man made plastic was invented by A) Alexander Graham Bell. B) Alexandre Fleming. C) Issac Newton. D) Alexander Parkes. Show Answer Correct Answer: D) Alexander Parkes. 58. A brief information about three different plastics is given below:X:Thermoplastic which can be rolled into sheetsV:Thermoplastic which is used as a covering for electric wires.Z:Thermosetting which is used for making plugs and switches. Identify X, Y and Z, A) X, Y, Z Polyvinyl chloride, Polythene, Melamine. B) X, Y, Z Melamine, Teflon, Bakelite. C) X, Y, Z Bakelite, Malamine, Polythene. D) X, Y, Z Polythene, Polyvinyl chloride, Bakelite. Show Answer Correct Answer: D) X, Y, Z Polythene, Polyvinyl chloride, Bakelite. 59. ..... is a synthetic fibre used for making woollen clothes. A) Polyester. B) Acrylic. C) Fibre. D) Cotton. Show Answer Correct Answer: B) Acrylic. 60. Name the first fully synthetic fibre? A) Nylon. B) Polyester. C) Rayon. D) Cotton. Show Answer Correct Answer: A) Nylon. ← PreviousNext →Related QuizzesScience QuizzesClass 8 QuizzesClass 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 1Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 2Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 3Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 4Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 6 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books