Which of the following is made of natural polymers: 1. 5._____is a kind of fibre that resembles wool. D. Silk. (a) Wool (b) PET (c) Wood pulp (d) Silk Answer. The valence of an element or radical is D. Sisal. Types of Synthetic Fibers. c) Nylon. Synthetic fibers have very low levels of absorbency. Click hereto get an answer to your question ️ Which of the following is not a synthetic fibre? 2. Free Question Bank for 8th Class Science Synthetic Fibers and Plastics Synthetic Fibres and Plastics answer choices . Report an issue . So clothes made of such fibres stick to the skin when in contact with a flame, causing burns. Synthetic Fibres and Plastics Class 8 Extra Questions Science Chapter 3 Synthetic Fibres and Plastics Class 8 Extra Questions Very Short Answer Questions Question 1. c) Melamine plastic. B Nylon-6 . Answer: Nylon is the strongest amongst all the synthetic fibres. Question. They are uncomfortable in those works. whereas the synthetic fibre B contains a large number of ester groups. Cotton. 4. Class 8 Science Chapter 3 MCQ (Multiple Choice Questions) of Synthetic Fibres and Plastic. Option 4: Rayon, Polyester, Acrylic. Alternating pattern of two weft threads crossing two warp threads. 1. They are naturally grown. (a) Cotton (c) Jute (b) Nylon (d) Wool 2. Cotton, jute and wool are natural fibres. Download CBSE Class 8 Science Synthetic Fibres and Plastics MCQs in pdf, Science chapter wise Multiple Choice Questions free, Chapter 3Synthetic Fibres and Plastics 1 A chain of small chemical units combined to form a large single unit is called ____a) Polymerb) Polyc) Polythene The fibres which are obtained by blending natural and synthetic fibres are called (a) joint fibres (b) mixed fibres (c) real fibres (d) artificial fibres 2. Terrywool. C. Write 'T' for True or 'F' for False for the following sentences :-1. Therefore, they should not be worn in the kitchen or while setting off fireworks. Multiple Choice Questions Question. Which of the following in natural Fibre? (a) Wool (c) Wood pulp (b) PET (d) Silk 3. B. Polyester. Fibres that are purely synthetic like nylons, polyesters, acrylics are made from chemicals whereas semisynthetic fibres such as rayons are produced with the utilization of natural polymers as raw material. A. SURVEY . The forests would be conserved if synthetic fibres are used, but other effects of synthetic fibres are more harmful. It is a superior type of synthetic fiber, which is truly artificial, as it does not use any natural fiber as its raw material. Answer the following questions in short: 1. Polycot is obtained by mixing 3. Cotton. Question 1. https://www.weegy.com/Home.aspx?ConversationId=Y6CNQLRH&Link=i Answer: Nylon, terylene, PET, acrylic, teflon, etc. The synthetic fibre A is chemically a polyamide. Electric wires are coated with— PVC ——. Name a natural fibre. (b) Nylon Is a synthetic fibre. Synthetic fibres melt before burning. C. Jute. Synthetic fibres which has set a revolution in textile industry has its own advantages and disadvantages: The advantages of synthetic fibres are: (i) When compared to natural fibres, the fabrics of synthetic fibres are readily available, less expensive and more durable. Synthetic Fibres and Plastics Class 8 MCQs Questions with Answers. 5. 2 See answers pranavkumbhar6866 pranavkumbhar6866 Answer: Synthetic fibres are manufactured using plant materials and minerals: viscose comes from pine trees or petrochemicals, while acrylic, nylon and polyester come from oil and coal. User: The identity an author creates for himself in a story is known as his. This answer has been confirmed as correct and helpful. Question. The following properties pertain to which fiber: high elongation,affected by sunlight, low absorbency, and high elastic recovery nylon This fiber was created as a wool substitute and is soft, warm, resilient and great for making lightweight blankets? After harvesting, the stalks of jute plants are bundled together and soaked in water for about 20 days. None of the answers are correct; there's no real difference between synthetic and natural fibers. 9)Synthetic fibres are less expensive and readily available. 1. Weegy: The Court of Appeals performs the following actions EXCEPT send the case back for re-trial User: The Supreme ... Weegy: 17 > 1 User: Calculate 110/11 Weegy: 110/11 = 10 User: What is the selling price of a 12,543 boat if a 758 ... Weegy: "Women" was given power in Iroquois society that was not usually given power in other civilizations. A synthetic fiber is shiny and silky, while natural fibers are always dull and rough. Polyester, nylon and acrylic are synthetic polymer. Tags: Question 17 . 3. Polycot is obtained by mixing (a) nylon and wool (b) polyester and wool (c) nylon and cotton (d) polyester and cotton. Synthetic Fibres and 3 Plastics MULTIPLE CHOICE QUESTIONS 1. Indicate whether the following statements are True or False. It is easy to dye in a wide range of colours. 4. 30 seconds . After harvesting, the stalks of jute plants are bundled together and soaked in water for about 20 days. Silk. It is a polymer of amides. another synthetic fibre C is made of a polymer D which consists of a number of glucose units joined one after the other (a) Which fibre could be (i) … Comment. The small molecules which join together to form a polymer is called … This fiber was called rayon or artificial silk. 2. Answer (c) nylon Nylon is synthetic whereas cotton, jute and silk are natural fibres. 1 answer. Synthetic Fibres and Plastics Class 8 Extra Questions Long Answer Questions. 3._____plastics do not become soft on heating and cannot be reshaped. Synthetic Fibres and Plastics Class 8 MCQs Questions with Answers. You may need to download version 2.0 now from the Chrome Web Store. All of the following are synthetic polymer fibers, except: Rayon. answer choices . another synthetic fibre C is made of a polymer D which consists of a number of glucose units joined one after the other (a) Which fibre could be (i) … It is easy to dye in a wide range of colours. This is a type of synthetic fibre obtained from wood pulp. Nylon is an artificial or synthetic fibre made of polyamide which contains carbon, oxygen, nitrogen and hydrogen. (a) Cotton (b) Nylon (c)Jute (d)Wool Answer. Also Read: Fibre to fabric. 5. The fibres are then separated from the stem in long strands and washed in clear, running water. Which of the following is a source of rayon? 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