https://www.weegy.com/Home.aspx?ConversationId=Y6CNQLRH&Link=i 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. C Nylon-6, 6 . Terrycot. B. Rayon Another way to prevent getting this page in the future is to use Privacy Pass. Explain the difference between thermoplastic and thermosetting plastics. Home / Green Board / Miscellaneous / Question. D. Sisal. Question 1. Polycot is obtained by mixing (a) nylon and wool (c) nylon and cotton (b) polyester and wool (d) polyester and cotton 4. B Nylon-6 . Pick the synthetic fibre out of the following? Answer. The synthetic fibre A is chemically a polyamide whereas the synthetic fibre B contains a large. Rayon fabric is soft, absorbent and comfortable. Wool. 3. 2 Which of the following is a source of rayon? Solving the Synthetic Fibres and Plastics Multiple Choice Questions of Class 8 Science Chapter 3 MCQ can be of extreme help as you will be aware of all the concepts. a) Woolen clothes. Explain why some fibres are called synthetic. Check Answer and Solution for above Chemistry question - Tardigrade Answer: Protein Question 3. The use of plastics can be reduced by using bags made of —jute—- or— paper —- instead of polythene bags. Polycot is obtained by mixing (a) nylon and wool (b) polyester and wool (c) nylon and cotton (d) polyester and cotton. C. Ramie Following are some of the most commonly used synthetic fibres: Know more about Classifications of Fibers. C. Acrylic. Which of the following is not a synthetic fibre? Synthetic Fibres and Plastics ... 7 Which of the following is Non-biodegradable. Get an answer. Which inverse operation would be used to verify the following ... What promotes the recognition of ideologies. 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. This is a type of synthetic fibre obtained from wood pulp. 1 answer. 13%. Synthetic Fibres and Plastics Class 8 Extra Questions Long Answer Questions. 5. Different types of synthetic fibres like, Rayon fibres, Nylon fibres, Polyester fibres and Acrylic fibres have been explained. Question 1. Solution: Rubber is natural polymer. It is easy to dye in a wide range of colours. Rayon . Terylene. Search for an answer or ask Weegy. Nylon is an artificial or synthetic fibre made of polyamide which contains carbon, oxygen, nitrogen and hydrogen. Rayon is mixed with wool to make carpets. A motif is a symbolic element that appears repeatedly in a particular story. Which of the following is a synthetic fiber? Nylon-6, Nylon-6, 6 and Nylon 6, 10 are synthetic fibre or man … Synthetic fibres are man-made from chemicals. Clothes made of pure synthetic fibres are garishly lustrous. The synthetic fibre A is chemically a polyamide. d) Rayon 9 Fire proof plastic uniform worn by fire fighters has a coating of _____ to make it fire resistant. After harvesting, the stalks of jute plants are bundled together and soaked in water for about 20 days. A Rubber . Synthetic Fibres and Plastics Class 8 Science Chapter 3 as per NCERT Book used in CBSE and other Schools. Name a natural fibre. Which of the following is used for making gunny bags? Which of the following in natural Fibre? A. Jute The identity an author creates for himself in a story is known as his persona. whereas the synthetic fibre B contains a large number of ester groups. Updated 149 days ago|8/14/2020 5:28:37 AM. Plastic 2. A. equal to the number of positive or negative charges on the ion. (a) Cotton (c) Jute (b) Nylon (d) Wool 2. Why is it not advisable to wear clothes made up of synthetic fibres in hot and humid weather? 30 seconds . Class 8 Science Chapter 3 MCQ (Multiple Choice Questions) of Synthetic Fibres and Plastic. Synthetic fiber or synthetic fibre (in British English; see spelling differences) are fibers made by humans through chemical synthesis, as opposed to natural fibers that are directly derived from living organisms. Rayon. Which of the following would be considered a suspicious purchasing ... can Bomb-making ingredients can be found in some common health and ... Divide 7/15 by 3/5. After selecting the correct or incorrect answers, you can see the right answers with reason behind them. Which of the following is a synthetic fibre? b) Silk. Synthetic fibres melt before burning. Synthetic fibers have very low levels of absorbency. Synthetic Fibres and Plastics Class 8 MCQs Questions with Answers. They are uncomfortable in those works. [NCERT] Answer: The said statement is correct to a certain extent. Krishna vaani. (a) Wool (c) Wood pulp (b) PET (d) Silk 3. Which is a thermosetting plastic? D. less than the number of positive or negative charges on the ion. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. The following properties pertain to which fiber: high elongation,affected by sunlight, low absorbency, and high elastic recovery. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. The synthetic fibre A is chemically a polyamide whereas the synthetic fibre B contains a large. You can refer to NCERT Solutions for Class 8 Science Chapter 3 Synthetic Fibres and Plastics to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams. 9)Synthetic fibres are less expensive and readily available. Viscose fibre is obtained from the cellulose; versatility allows imitating materials such as cotton or silk. Pick the synthetic fibre out of the following? Synthetic fibres suffer from the following disadvantages: ADVERTISEMENTS: 1. One of the following man-made fibre is not prepared from raw materials obtained from petrochemicals. b) Rayon. They melt on heating and cause heavy burns. D) Flax done clear. Which of the following fibre is synthetic: (a) cotton (b) jute (c) nylon (d) silk. Tags: Question 17 . D. Silk. A. Jute B. Rayon C. Ramie D. Sisal Rayon is a synthetic fiber. Home / Green Board / Miscellaneous / Question. You may need to download version 2.0 now from the Chrome Web Store. The nylon fibers are elastic, strong and water resistant. 4. Rayon fabric is soft, absorbent and comfortable. Jamienoble. 2. (b) Nylon Is a synthetic fibre. 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. Starch 4. NCERT Exemplar Class 8 Science Chapter 3 Synthetic Fibres and Plastics. WINDOWPANE is the live-streaming social network that turns your phone into a live broadcast camera for streaming to friends, family, followers, or everyone. Following are some of the most commonly used synthetic fibres: Know more about Classifications of Fibers. Which of the following is not a synthetic fibre: 1. Acrylic 4. Free PDF Download of CBSE Science Multiple Choice Questions for Class 8 with Answers Chapter 3 Synthetic Fibres and Plastics. Therefore, they should not be worn in the kitchen or while setting off fireworks. 1)Natural fibres:The fibres obtained from plants and animals.. For Ex:Cotton,flax,jute,wool,silk.. 2)Synthetic fibres:They are made by human beings.. For Ex:Rayon,nylon,polyester,acrylic etc.. A polymer is a very big molecule formed by the combination of a large number of small molecules.. C. Write 'T' for True or 'F' for False for the following sentences :-1. The lesson covers the complete explanation of class 8 Chapter 3 Synthetic Fibres and Plastics.Topics covered are Introduction to fibres, kinds of fibres. Which of the following is not a synthetic fibre . It is easy to dye in a wide range of colours. Give examples which indicate that nylon fibres are very strong. What does foreshadowing provide the reader in a story? (A) Rubber (B) Nylon-6 (C) Nylon-6, 6 (D) Nylon-6, 10. 3. 3. They are generally based on polymers and are stronger than natural and regenerated fibres. The fibres are then separated from the stem in long strands and washed in clear, running water. 25%. Question-answers (Fibre to Fabric) Multiple Choice Questions 1. Name some artificial fibres. Disposal of synthetic fibres causes lot of environmental pollution. Question. Join The Discussion . Rayon is a synthetic fiber. 3. Natural fibres include cotton, fur, wool, jute etc. Synthetic Fibres and Plastics Class 8 Science Chapter 3 as per NCERT Book used in CBSE and other Schools. C. Jute. Choose the correct option in the following questions: Question 1. It is not advisable to wear clothes made of synthetic fibre while working near fire because . Such a fiber was obtained by chemical treatment of wood pulp. • A. 1. When viewed under a compound microscope, what two traits would indicate that the fiber was a human hair and not a piece of fiber obtained from an article of clothing? 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) … A. Nylon. Q. a) Nylon. 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. They are naturally grown. Synthetic fibres can either be completely synthetic or semisynthetic. 5. 30 seconds . 3. Alternating pattern of two weft threads crossing two warp threads. Fibre to Fabric Class 6 MCQs Questions with Answers. Asked 6/10/2016 3:16:17 PM . (b) Synthetic fibres do not absorb sweat. Polyester 3. It was made in 1931 for the first time. 1 year ago . asked Jun 20 in Chemistry by BhratJha (44.3k points) synthetic fibers and plastics; 5. Give examples which indicate that nylon fibres are very strong. Acrylic a synthetic fibre which is known as artificial wool. (ii) Synthetic fibres do not melt on heating. Cotton. Terylene. User: The identity an author creates for himself in a story is known as his. Synthetic fibres are of four types, namely: Rayon; Nylon; Polyester; Acrylic; Rayon The forests would be conserved if synthetic fibres are used, but other effects of synthetic fibres are more harmful. Bakelite is a- synthetic polymer — plastic. Which of the following is Synthetic fibre? Paint. Answer: Cotton Question 2. The small molecules which join together to form a polymer is called … Rayon 2. This fiber was created as a wool substitute and is soft, warm, resilient and great for making lightweight blankets? All of them. Here we have given NCERT Exemplar Class 8 Science Chapter 3 Synthetic Fibres and Plastics. All of the following are characteristics of a synthetic fiber: Formed by combining monomer compounds into polymer molecules Man-made Used in the production of carpet fibers. Cotton. 8)Synthetic fibres do not shrink. Free Question Bank for 8th Class Science Synthetic Fibers and Plastics Synthetic Fibres and Plastics Which of the following is not a synthetic fibre? 1 year ago . Plain Weave Pattern. Join The Discussion. a) Thermosetting plastics. Answer: Option D . Rayon . True. Synthetic fiber or synthetic fibre (in British English; see spelling differences) are fibers made by humans through chemical synthesis, as opposed to natural fibers that are directly derived from living organisms. (a) Cotton (b) Nylon (c)Jute (d)Wool Answer. Manipal Manipal 2004. It is a superior type of synthetic fiber, which is truly artificial, as it does not use any natural fiber as its raw material. Ungraded . 4. Cloudflare Ray ID: 60fbb492ba6c1e6d D. Wool. A. Nylon. whereas the synthetic fibre B contains a large number of ester groups. Answer: Option D . Also Read: Fibre to fabric. None of the answers are correct; there's no real difference between synthetic and natural fibers. It is made without using any natural raw material. Pick the synthetic fibre out of the following? In the collection of fibre evidence, great care should be … SURVEY . All of them. Synthetic fibres, on the other hand, undergo changes in their chemical structure and composition, during the manufacturing process. Which of the following is a source of rayon? Which of the following is a synthetic fibre? Which of the following is not a synthetic fibre . Acrylic is soft, lightweight and warm. b) Plastic bag, c) Cotton cloth. SURVEY . They are uncomfortable in those works. Answer the following questions in short: 1. 2. Silk. Polymers are micro sized molecules. Manipal 2004: Which of the following is not a synthetic fibre? B. not related to the number of positive or negative charges on the ion. Describe about nylon. Find an answer to your question Which of the following is a synthetic fiber?1.spandex2.cotton3.Nylon4.Aerylic Synthetic Fibres and Plastics M ULTIPLE C HOICE Q UESTIONS 1. Your IP: 91.121.89.77 3._____plastics do not become soft on heating and cannot be reshaped. 1. A. Different types of synthetic fibres like, Rayon fibres, Nylon fibres, Polyester fibres and Acrylic fibres have been explained. (a) Melamine (b) Polythene (c) PVC (d) Nylon. New answers. Which of the following is a synthetic fiber? If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. A) Rayon done clear. Which of the following is purely a synthetic fibre? Updated 244 days ago|5/11/2020 9:28:26 PM. The valence of an element or radical is equal to the number of positive or negative charges on the ion. (a) Cotton (c) Jute (b) Nylon (d) Wool 2. Jute fibre is obtained from jute plant by the following steps: Retting: Jute fibre is obtained from the stalks of the jute plant. This is a type of synthetic fibre obtained from wood pulp. Terrywool. Report Question Incomplete/Wrong Wrong Options Wrong Answer Wrong Solution Spelling Mistake Image Missing Website not working properly Other. 4. (a) Synthetic fibres catch fire very easily. Also write the false statements in their correct form. Foreshadowing provides the reader "hints of what's coming next in the plot" in a story. (a) Cotton (b) Jute (c) Wool (d) Polyster 3. Please enable Cookies and reload the page. After harvesting, the stalks of jute plants are bundled together and soaked in water for about 20 days. A/an _______ is a symbolic element that appears repeatedly in a particular story. 7/25 C. 21/75 D. 75/21, What was the first industry to industrialize in Great Britain. All of the above. Which of the following is made of natural polymers: 1. Which synthetic fibre contains the organic group similar-to those which give fruits their sweet smell. No one

Wool

alternatives

Cotton

Rayon

Silk

No one

Tags: Question 3 . 30 seconds . It resembles and feels like wool. The synthetic fibre which contains the group similar to those which give fruits their ‘sweet smell’ is: asked Jun 20 in Chemistry by BhratJha (44.3k points) synthetic fibers and plastics; class-8; 0 votes. Acrylic a synthetic fibre which is known as artificial wool. Natural fibres get crumpled easily during washing and wear. (a) Wool (b) PET (c) Wood pulp (d) Silk Answer. • Multiple Choice Questions Question. answer choices . Psychological level of setting in a story takes place inside the character's mind.