A. Jute Multiple Choice Questions Question. Which of the following is made of natural polymers: 1. Polycot is obtained by mixing (a) nylon and wool (b) polyester and wool (c) nylon and cotton (d) polyester and cotton. Jute fibre is obtained from jute plant by the following steps: Retting: Jute fibre is obtained from the stalks of the jute plant. Ungraded . (a) Melamine (b) Polythene (c) PVC (d) Nylon. Terrywool. Polycot is obtained by mixing Answer: Option D . Which of the following is a synthetic fiber? Synthetic Fibres and 3 Plastics MULTIPLE CHOICE QUESTIONS 1. Explain why plastic containers are favoured for storing food. Polycot is obtained by mixing (a) nylon and wool (c) nylon and cotton (b) polyester and wool (d) polyester and cotton 4. whereas the synthetic fibre B contains a large number of ester groups. Students can solve NCERT Class 8 Science Synthetic Fibres and Plastics MCQs Pdf with Answers to know […] Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. A. SURVEY . Pick the synthetic fibre out of the following? c) Melamine plastic. Here we have given NCERT Exemplar Class 8 Science Chapter 3 Synthetic Fibres and Plastics. Terrywool. Answer: Cotton Question 2. Synthetic Fibres and Plastics Class 8 MCQs Questions with Answers. Following are some of the most commonly used synthetic fibres: Know more about Classifications of Fibers. (ii) Synthetic fibres do not melt on heating. 30 seconds . Updated 244 days ago|5/11/2020 9:28:26 PM. Starch 4. Rayon is produced from the natural fiber in the following steps: Pure cotton or cellulose is soaked in 30% solution of caustic soda for three hours. (Inme se konsa natural fibre hei?) A full revision with question-answer and explanation in the form of MCQs based on latest CBSE Syllabus for new academic session 2020-2021. Jamienoble. (Inme se konsa Synthetic fibre hei?) Join The Discussion. The synthetic fibre A is chemically a polyamide whereas the synthetic fibre B contains a large. https://www.weegy.com/Home.aspx?ConversationId=Y6CNQLRH&Link=i Cloudflare Ray ID: 60fbb492ba6c1e6d answer choices . s. Log in for more information. Name the basic component of animal fibres. The fibres are then separated from the stem in long strands and washed in clear, running water. Rayon is mixed with cotton to make bedsheets. Plain Weave Pattern. The fibres are then separated from the stem in long strands and washed in clear, running water. Which is a thermosetting plastic? Nylon-6, Nylon-6, 6 and Nylon 6, 10 are synthetic fibre or man … Explain the difference between thermoplastic and thermosetting plastics. Synthetic Fibres and Plastics Class 8 Science Chapter 3 as per NCERT Book used in CBSE and other Schools. WINDOWPANE is the live-streaming social network that turns your phone into a live broadcast camera for streaming to friends, family, followers, or everyone. The small molecules which join together to form a polymer is called … (i) The fabric terywool is obtained by mixing terylene and wool. Which of the following is Synthetic fibre? This one is: asked Jun 20 in Chemistry by BhratJha (44.3k points) synthetic fibers and plastics; class-8; 0 votes. 3. Which of the following is not a synthetic fibre? Class 8 Science Chapter 3 MCQ (Multiple Choice Questions) of Synthetic Fibres and Plastic. Which of the following is purely a synthetic fibre? 1 year ago . Pick the synthetic fibre out of the following? 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. (b) Nylon Is a synthetic fibre. Rayon is a synthetic fiber. Answer: Protein Question 3. 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. It is not advisable to wear clothes made of synthetic fibre while working near fire because . Which of the following is a synthetic fiber? The following properties pertain to which fiber: high elongation,affected by sunlight, low absorbency, and high elastic recovery. A. Krishna vaani. 5. Rayon 2. Also write the false statements in their correct form. This answer has been confirmed as correct and helpful. Find an answer to your question Which of the following is a synthetic fiber?1.spandex2.cotton3.Nylon4.Aerylic Choose the correct option in the following questions: Question 1. 1. Explain the difference between thermoplastic and thermosetting plastics. Answer the following questions in short: 1. 4. Acrylic is soft, lightweight and warm. 2. Which of the following is not a synthetic fibre? Get an answer. Which of the following is not a synthetic fibre? This test is Rated positive by 89% students preparing for Class 8.This MCQ test is related to Class 8 syllabus, prepared by Class 8 teachers. The synthetic fibre A is chemically a polyamide. Synthetic fibres dry up soon, are durable, less expensive, readily available and easy to maintain. This is a type of synthetic fibre obtained from wood pulp. • Describe about nylon. It is easy to dye in a wide range of colours. Which of the following is used for making gunny bags? The nylon fibers are elastic, strong and water resistant. 4. 2. Such a fiber was obtained by chemical treatment of wood pulp. 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. Comment. Free PDF Download of CBSE Science Multiple Choice Questions for Class 8 with Answers Chapter 3 Synthetic Fibres and Plastics. 2. The synthetic fibre A is chemically a polyamide. Bakelite is a- synthetic polymer — plastic. Terrycot. In the collection of fibre evidence, great care should be … B. Rayon 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. Explain why some fibres are called synthetic. Electric wires are coated with— PVC ——. It was made in 1931 for the first time. B Nylon-6 . Question 1. answer choices . They are generally based on polymers and are stronger than natural and regenerated fibres. Weegy: The following would be considered a suspicious purchasing behavior is a customer who refuses similar products ... Weegy: The fraction 7/15 divided by 3/5 is 7/9. Q. 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. (iii) It is risky to wear synthetic clothes … A. Jute B. Rayon C. Ramie D. Sisal Rayon is a synthetic fiber. Which of the following is a synthetic fibre? They melt on heating and cause heavy burns. 30 seconds . All of the above. 63%. 2. (a) Cotton (b) Nylon (c)Jute (d)Wool Answer. It is easy to dye in a wide range of colours. Natural fibres include cotton, fur, wool, jute etc. 1 Pick the synthetic fibre out of the following. Which of the following is a synthetic fibre? This is a type of synthetic fibre obtained from wood pulp. Free Question Bank for 8th Class Science Synthetic Fibers and Plastics Synthetic Fibres and Plastics Updated 6/10/2016 7:34:58 PM. Log in for more information. B. not related to the number of positive or negative charges on the ion. Disposal of synthetic fibres causes lot of environmental pollution. Answer. … Acrylic a synthetic fibre which is known as artificial wool. The valence of an element or radical is d) Wood 8 Bakelite and Melamine are examples of. Science MCQs for Class 8 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. User: whats the sum of 3/8 and 1/16 Weegy: 2 + 2 = 4. asked Jun 20 in Chemistry by BhratJha (44.3k points) synthetic fibers and plastics; D. Silk. 1 year ago . C. Write 'T' for True or 'F' for False for the following sentences :-1. Why is it not advisable to wear clothes made up of synthetic fibres in hot and humid weather? Pick the synthetic fibre out of the following? Name a natural fibre. 2. A synthetic fiber is shiny and silky, while natural fibers are always dull and rough. 13%. Which inverse operation would be used to verify the following ... What promotes the recognition of ideologies. Nylon 3. Asked 6/10/2016 3:16:17 PM . They are uncomfortable in those works. Updated 149 days ago|8/14/2020 5:28:37 AM. acrylic. Explain why plastic containers are favoured for storing food. a) Woolen clothes. Question. 3. Clothes made of pure synthetic fibres are garishly lustrous. (a) Wool (b) PET (c) Wood pulp (d) Silk. 25%. 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? (a) Wool (c) Wood pulp (b) PET (d) Silk 3. Synthetic fibres melt before burning. Synthetic fibres are man-made from chemicals. D) Flax done clear. answer choices . 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. Q. 1 Pick the synthetic fibre out of the following. (a) Cotton (b) Nylon (c) Jute (d) Wool. Manipal Manipal 2004. C. Acrylic. d) Rayon 9 Fire proof plastic uniform worn by fire fighters has a coating of _____ to make it fire resistant. (b) Nylon Is a synthetic fibre. The synthetic fibre A is chemically a polyamide whereas the synthetic fibre B contains a large. Cotton, jute and wool are natural fibres. The forests would be conserved if synthetic fibres are used, but other effects of synthetic fibres are more harmful. Which of the following is a source of rayon? Home / Green Board / Miscellaneous / Question. Rayon fabric is soft, absorbent and comfortable. answer choices . It is not advisable to wear clothes made of synthetic fibre while working near fire because . Question 1. Which of the following is not a synthetic fibre? It is fully synthetic polymer which is prepared from coal, water and air. The identity an author creates for himself in a story is known as his persona. 4._____is called an artificial silk. 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. It is prepared by the polymerization of amide molecules. (a) Wool (c) Wood pulp (b) PET (d) Silk 3. Synthetic fibres are of four types, namely: Rayon; Nylon; Polyester; Acrylic; Rayon Terylene. Tags: Question 17 . Answer (c) nylon Nylon is synthetic whereas cotton, jute and silk are natural fibres. 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. Acrylic is soft, lightweight and warm. 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. It is a polymer of amides. All of them. answer choices . C) Cotton done clear. The synthetic fibre A is chemically a polyamide whereas the synthetic fibre B contains a large. No one

Wool

alternatives

Cotton

Rayon

Silk

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Tags: Question 3 . Which of the following is not a synthetic fibre: 1. Answer the following questions in short: 1. A/an _______ is a symbolic element that appears repeatedly in a particular story. Performance & security by Cloudflare, Please complete the security check to access. 1 answer. B. Polyester. 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. Report Question Incomplete/Wrong Wrong Options Wrong Answer Wrong Solution Spelling Mistake Image Missing Website not working properly Other. (a) Synthetic fibres catch fire very easily. Share what’s outside your window and all around you. Which of the following is a source of rayon? Which of the following is a synthetic fiber? 1. They do not absorb moisture. A fiber is collected at a crime scene. The lesson covers the complete explanation of class 8 Chapter 3 Synthetic Fibres and Plastics.Topics covered are Introduction to fibres, kinds of fibres. These solutions for Synthetic Fibres And Plastics are extremely popular among Class 8 students for Science Synthetic Fibres And Plastics Solutions come handy for quickly completing your homework and preparing for exams. Viscose fibre is obtained from the cellulose; versatility allows imitating materials such as cotton or silk. C. Ramie It resembles and feels like wool. Different types of synthetic fibres like, Rayon fibres, Nylon fibres, Polyester fibres and Acrylic fibres have been explained. (a) Cotton (b) Nylon (c)Jute (d)Wool Answer. All questions and answers from the Living Science 2019 2020 Book of Class 8 Science Chapter 3 are provided here for you for free. C Nylon-6, 6 . Give examples which indicate that nylon fibres are very strong. Synthetic fibres are man-made from chemicals. (a) Cotton (b) Jute (c) Wool (d) Polyster 3. Answer: Option D . New answers. Question. C. Jute. 4. Home / Green Board / Miscellaneous / Question. D. Sisal. 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) Cotton (c) Jute (b) Nylon (d) Wool 2. Silk. Fibre to Fabric Class 6 MCQs Questions with Answers. Answer: Nylon, terylene, PET, acrylic, teflon, etc. Which of the following is used for making gunny bags? NCERT Solutions for Class 8 Science Chapter 3 – 5 Mark Questions and Answers . 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? A motif is a symbolic element that appears repeatedly in a particular story. Which of the following is not a synthetic fibre . Foreshadowing provides the reader "hints of what's coming next in the plot" in a story. Join The Discussion . 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.. Terylene. 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. b) Plastic bag, c) Cotton cloth. True of False. Synthetic Fibres and Plastics Class 8 MCQs Questions with Answers. What level of setting in a story takes place inside the character's mind? It is a superior type of synthetic fiber, which is truly artificial, as it does not use any natural fiber as its raw material. Wool is natural polymer. Solution: Rubber is natural polymer. Cotton. [NCERT] Answer: The said statement is correct to a certain extent. 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..

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