This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 3 Synthetic Fibres And Plastics – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 4 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. PET is a very familiar form of A) Chemical. B) Monomer. C) Polyester. D) Polyphenyl. Show Answer Correct Answer: C) Polyester. 2. Which of the following arrangements is the correct order of fabrics in their decreasing strength? A) Polyester-Nylon-Silk-Cotton-Wool. B) Nylon-Polyester-Silk-Cotton-Wool. C) Wool-Nylon-Silk-Cotton-Polyester. D) Polyester-Nylon-Cotton-Silk-Wool. Show Answer Correct Answer: A) Polyester-Nylon-Silk-Cotton-Wool. 3. Assertion:Acrylic fibres are used in making socks and shawls.Reason:Acrylic fibres are a replacement or woolen fibres. A) Both assertion and reason are true and the reason is the correct explanation of assertion. B) Both assertion and reason are true but the reason is not correct for the assertion. C) The assertion is true but the reason is false. D) The assertion is false but the reason is true. Show Answer Correct Answer: A) Both assertion and reason are true and the reason is the correct explanation of assertion. 4. What is chemical name of teflon? A) Polytetrafluoroethylene. B) Polydifluoromonocarbide. C) Polytetracarbonmonofluoride. D) None of the above. Show Answer Correct Answer: A) Polytetrafluoroethylene. 5. The synthetic fibre which resembles silk in texture is A) Nylon. B) Rayon. C) Acrylic. D) Polyester. Show Answer Correct Answer: B) Rayon. 6. The common characteristic properties plastics are A) Durable, good conductor of electricity, and non-reactive. B) Good conductor of heat, light in weight, and good conductor of electricity. C) Durable, light in weight, and non-reactive. D) Durable, good conductor of heat, and non-reactive. Show Answer Correct Answer: C) Durable, light in weight, and non-reactive. 7. Thermoplastic:PVC:plastic:?? A) Nylon. B) Bakelite. C) Polystrene. D) Polythene. Show Answer Correct Answer: B) Bakelite. 8. Firefighters' uniform is coated with a plastic that is fire resistant. Identify the plastic from the given options. A) Teflon. B) Melamine. C) PET. D) Polyester. Show Answer Correct Answer: B) Melamine. 9. Sunil gave his clothes to his younger brotherHari when he outgrew. What is this practiceknown as? A) Recycling. B) Reusing. C) Reducing. D) Reinventing. Show Answer Correct Answer: B) Reusing. 10. Plastics are biodegradable A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 11. SYNTHETIC PLASTIC MATERIALS OBTAINED BY GENTLE HEATING AND MOULDING THAT CANNOT BE RESHAPED BY GENTLE HEATING, IS CALLED: A) THERMOSETTING PLASTICS. B) THERMOPLASTICS. C) POLYPROPENE. D) ALL OF THESE. Show Answer Correct Answer: A) THERMOSETTING PLASTICS. 12. Biodegradable waste such as food items should be thrown in ..... bin A) Blue bin. B) Green bin. C) All the above. D) None of the above. Show Answer Correct Answer: B) Green bin. 13. Disposable cups, bowls, plates are made from ..... A) Polythene. B) PVC. C) Polystyrene. D) Melamine. Show Answer Correct Answer: C) Polystyrene. 14. The term Nylon is named after two cities A) New YorkLahore. B) LondonCanada. C) New YorkAustralia. D) New YorkLondon. Show Answer Correct Answer: D) New YorkLondon. 15. Rayon is a natural fibres A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 16. What is the Natural polymer present in Rayon? A) Cotton. B) Chlorophyll. C) Terylene. D) Cellulose. Show Answer Correct Answer: D) Cellulose. 17. Which of the following is an thermosetting plastics A) PVC. B) Bakelite. C) Cotton. D) Silk. Show Answer Correct Answer: B) Bakelite. 18. A large single unit combined by many small units A) Polyester. B) Polymer. C) Terrycot. D) Polywool. Show Answer Correct Answer: B) Polymer. 19. Which of the following material is a mixture of two fibres? A) Jute. B) Polywool. C) Polyester. D) Nylon. Show Answer Correct Answer: B) Polywool. 20. Polyester is actually made of repeating units of a chemical called as ..... A) Ether. B) Anther. C) Ester. D) None of the above. Show Answer Correct Answer: C) Ester. 21. Which of the following statements is not true about low density polythene? A) Soft. B) Hard. C) Poor conductor of electricity. D) Highly branched structure. Show Answer Correct Answer: B) Hard. 22. Terylene is a popular form of A) Polyester. B) Monomer. C) Plastic. D) Nylon. Show Answer Correct Answer: A) Polyester. 23. What do silk fibres consist of? A) Vitamins. B) Carbohydrates. C) Proteins. D) Fats. Show Answer Correct Answer: C) Proteins. 24. ..... and ..... are two ways of countering the harmful effects associated with plastic disposal A) Burning plastics and not using repeated plastics. B) Reducing the usage of plastics and recycling plastic objects. C) All the above. D) None of the above. Show Answer Correct Answer: B) Reducing the usage of plastics and recycling plastic objects. 25. Plastic buckets are the examples of A) Biodegradable materials. B) Non-biodegradable materials. C) All the above. D) None of the above. Show Answer Correct Answer: B) Non-biodegradable materials. ← PreviousNext →Related 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 5Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 6Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 7Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 8Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 9Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 10Class 8 Science Chapter 3 Synthetic Fibres And Plastics Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books