(c) polythene and wool Question 8. (d) all of these. Polymer present in plants is: (b) non-corrosive Which of the following once set do not soften on heating: Polywool is a mixture of ………………… and wool. (d) nylon. Question 13. 1800-212-7858 / 9372462318. (b) teflon (d) polyester. (b) it is obtained from wood pulp. Question 20. Question 16. MCQ Questions for Class 8 Science: Ch 3 Synthetic Fibres and Plastics Abhishek 01 Sept, 2020 MCQ Questions for Class 8 Science: Ch 3 Synthetic Fibres and Plastics Cotton clothes are more comfortable during hot/humid weather. Which of the following cannot be recycled: All are solved here. 2. RBSE Class 8 Science Synthetic Fibres and Plastics Intext Questions and Answers. Many small units combine to form a large single unit called a . Teflon. Plastic reacts with air and water. 2. (d) ball point pens. (b) plastic bowls (a) nylon (a) molecules. Save. Which of the following is used to make non-stick cookwares: Nylon. (b) nylon (a) strong Explain why some fibres are called synthetic. 4. Mark ( ) the correct answer. Nylon is used for making parachutes and stockings. (c) rayon (b) polyethylene (a) cotton Polyester is made up of the repeating units of a chemical called …………………. 2. The purest natural form of cellulose is :- a. rayon . (a) aluminium foil (b) polyester Give examples which indicate that nylon fibres are very strong. Become our. CBSE Class 8 Science Synthetic Fibres And Plastics Online Test Set A. Synthetic Fibres and Plastics: Questions 1-5 of 82. Question 2. (a) nylon Rayon is made from cellulose obtained from wood pulp. Which of the following is a thermosetting plastic: When small units of chemicals join together in a large chain then synthetic fibres are formed. b. cotton . Answer: A chain of small units called monomers joined together is called polymer. Polyester fibres are used for making hand knit sweaters. Question 28. If you feel any information regarding CBSE Class 8 Science Synthetic Fibres and Plastics MCQs Multiple Choice Questions with Answers is missing do reach us and we will look into it and add it accordingly. (iii) the process of formation of polymers by synthesis of monomers. Cellulose is made up of a large number of ………………… units. Science Important Questions Class 8 are given below. (d) all of these, (d) all of these Students are advised to practice the NCERT MCQ Questions for Class 8 Science Chapter 3 Synthetic Fibres and Plastics with Answers Pdf free download is available here. Examples – nylon, acrylic, rayon, etc. (b)cotton Question 8: ___ gives fruits their smell. (c) cotton Synthetic Fibres Extra Questions Short Answer Type Questions. 5. (a) cellulose Free download Synthetic Fibres and Plastics Class 8 Questions Worksheet.Ribblu launches platform for supplying free download of CBSE Sample board exam papers & worksheets from nursery to class … (c) glass Synthetic fibers are manufactured by a number of processes using petrochemicals. Students who have solved the topic wise CBSE Class 8 Science Chapter 3 Synthetic Fibre Objective Questions with solutions will find it easier to score more marks in the exams. A polymer is made up of many repeating units called monomers.Synthetic fibers also known as artificial fiber is a threadlike material do not exist naturally. Edit. 8th - University grade. Question 1. (c) cotton Question 8. These MCQ Questions on Synthetic Fibres and Plastics Class 8 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Examples of some synthetic fibres are rayon, nylon, etc. Wire made from nylon fibre is the strongest. CBSE Class 8 Science Synthetic Fibres and Plastics Objective Questions helps the students to understand the concepts thoroughly and to score good marks. (d) Recover, Question 9. (d) nylon. (i) chemical molecules formed naturally like silk, cotton etc. Question 6. (b) thermosetting plastic It was made in 1931 for the first time. Synthetic Fibres; Synthetic fibres are man-made. Question 26. Business Enquiry (North) … a) Polymer… mohitgaur088_05446. (d) polyester and wool. Plastics are durable, light and non-reactive. Question 7. (b) papers Class 8 Science Chapter 3 Synthetic Fibres and Plastics MCQ (Multiple Choice Questions) with Answers is available here in PDF format. The small units used in making synthetic fibres are. Polymer present in plants is cellulose. Question 15. (c) polyester 10 months ago. Natural substance is: RBSE Solutions for Class 8 Science. (a) Cotton (b) Nylon (c)Jute (d)Wool. Electric plugs are made up ………………… plastics. 25 Multiple Choice Questions related to NCERT 8th Class (CBSE) Science: Synthetic Fibres and Plastics – Quiz: Human-made materials are obtained from natural raw materials by chemical processes. (d) melamine When small units of chemicals join together in a large chain then synthetic fibres are formed. Aug 24,2020 - Test: Synthetic Fibres And Plastics - 4 | 20 Questions MCQ Test has questions of Class 8 preparation. 2. Rayon is different from synthetic fibres because (a) it has a silk-like appearance. Question 1. (a) acrylic Synthetic fibres and Plastics MCQ Chapter 3 class 8 science Objective questions with answer key and explanation. Nylon. (a) thermoplastic MCQ Questions for Class 8 Science with Answers are prepared as per the Latest Exam Pattern. Grade 8 Synthetic Fibres and Plastics Worksheets. Total there are 15 Questions. The 4-R principle is (a) ……………… (b) ……………. Examples: rayon, nylon, acrylic, etc. (a) acrylic Question 14. Science. Q.2 … c. both a & b . … Polyester is a synthetic fibrous material. Registration ; Login; Toggle navigation HOME. Question 1. (a) corrosive We should wear ………………… clothes in the kitchen. Question 9: Which fibre is also known as regenerated fibre? (b) polyester and cotton Synthetic fibre and plastics DRAFT. 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 (v) complex chemical molecules made of many type of single units. Studyrankers is a free educational platform for cbse k-12 students. Answer: Acrylic. Here we have covered Important Questions on Synthetic Fibres and Plastics for Class 8 Science subject. Which of the following set of features belong to thermoplastics ? ………………… is used for making ploythene bags. All the NCERT solutions are framed in a systematic manner, according to the latest CBSE Class 8 science syllabus (2020-21). (b) fruit peels 709 times. Correct Option is : 2. Fruit peels are biodegradable. The small units used in making synthetic fibres are: 19. (c) terylene (a) Synthetic fibres catch fire very easily. All are solved here. Which of the following softens on heating and then can be moulded into various shapes: (c) polythene (a) carry bags (d) rubber, (b) cellulose Mark ( ) the correct answer. Bee s. None of these. (a) glucose (d) nylon (c) cement Explain why some fibres are called synthetic. So they are available in all possible shapes and sizes. 2. A. Science Class 8– Chapter 3- Synthetic Fibres and Plastics- NCERT Exercise Solutions (Question-Answer) provided below. Rayon is different from synthetic fibres because (a) it has a silk-like appearance. Why is it not advisable to wear clothes made up of synthetic fibres in hot and humid weather? Answer. (a) PVC Question 1: Write some salient features 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. EduRev provides you three to four tests for each chapter. Ans:b. (c) rayon Polymers are materials with long chain molecules containing thousands of smaller molecules called monomers. c. wool . Rayon. Question 3. Synthetic Fibres and Plastics: Questions 1-5 of 82. PET is a form of polyester. (d) Plastics do not react with water and air. (c) acrylic (a) rayon Answer. (d) melamine. Answer the following questions in short: 1. Answer. For Enquiry. (b) polymers. 6. Hence, rayon is also called ‘poor man’s silk’. Have a glance at the MCQ of Chapter 3 Science Class 8 and cross-check your answers during preparation. ………………… fabrics do not wrinkle easily. Bristles of tooth brush are made from nylon because it is soft, flexible and strong. (a) rayon Revision worksheets, Sample papers, Question banks and easy to learn study notes for all classes and subjects based on CBSE and CCE guidelines. A synthetic fibre resembling wool is: Preview this quiz on Quizizz. A. Question 1. Total there are 15 Questions. _____ is blended with wool for making carpets. (c) cotton (a) plastics Answer : There are some fibres that are prepared by man by using chemicals. 5. Question 18. (b) fructose Free PDF download of Important Questions with solutions for CBSE Class 8 Science Chapter 3 - Synthetic Fibres and Plastics prepared by expert Science teachers from latest edition of CBSE(NCERT) books. (d) silk. The plastics which when moulded once, can not be softened by heating are called …………………, Question 10. The purest natural form of cellulose is :- a. rayon . (d) nylon. Question 29. (d) wood Answer. (a) broken plastics things (a) steel (b) plastic chairs (b) cellulose Synthetic fibres are made by . 11. The fibres which are not natural and made by human beings are called synthetic fibres as they are manufactured by chemical processing of petrochemicals. Here we have covered Important Questions on Synthetic Fibres and Plastics for Class 8 Science subject. (a) nylon Exercise : Solutions of Questions on Page Number : 41. Solution : Science Class 8 Important Questions are very helpful to score high marks in board exams. A polymer is made up of many repeating units called monomers.In contrast , the natural cotton , is a form of polymer called cellulose, which is made of a large number of glucose units.Fiber classification in reinforced plastics falls … The formed chain is called polymer. It is a polymer of amides. (c) cow-dung Edit. Practising these MCQs will help you to answer every question that is being asked in the exams. Answer the following questions in short: 1. Synthetic Fibres and Plastics Class 8 Science NCERT Textbook Questions. (a) plastic toys List the different types of fibres in following table – Answer: Page No 28. (c) artificial nylon Hence, rayon is also called ‘poor man’s silk’. Synthetic Fibres and Plastics - Class 8 : NCERT Exercise Questions. (c) plastic covering on electric wires Here comes the role of chapter wise Test of Chapter 3 - Synthetic Fibres and Plastics. Answer: Some fibres are called synthetic fibres because they are made by man using chemicals. (a)Thermoplastics (b)Thermosetting (c)Synthetic plastics (d)None of these 3.Name the plastic which is used for making switch, floor and tiles. Polywool is a mixture of: Rayon. (b) glass 10:00 AM to 7:00 PM IST all days. (b) durable The solved questions answers in this Test: Synthetic Fibres And Plastics - 3 quiz give you a good mix of easy questions and tough questions. (d) none of these. This test is Rated positive by 92% students preparing for Class 8.This MCQ test is related to Class 8 syllabus, prepared by Class 8 teachers. Rayon is: (c) nylon / By Prasanna. Class 8 Science Chapter 3 Synthetic Fibres and Plastics MCQ (Multiple Choice Questions) with Answers is available here in PDF format. Question 7. Write its uses and properties. A material which gets decomposed through natural processes, such as action by bacteria, is called …………………. CBSE Sample Papers. Synthetic fibre and plastics DRAFT. Bakelite is a thermosetting plastic. Students are advised to practice the NCERT MCQ Questions for Class 8 Science Chapter 3 Synthetic Fibres and Plastics with Answers Pdf free download is available here. (a) glucose (b) thermoplastic (a) thermosetting plastic Here you can get Class 8 Important Questions Science based on NCERT Text book for Class VIII. Wire made from which fibre is strongest: Played 709 times. Polycot is a mixture of polyester and cotton. Correct Option is : 2. Different types of synthetic fibres like, Rayon fibres, Nylon fibres, Polyester fibres and Acrylic fibres have been explained. Question 7. NCERT Solutions for Class 8 Science Chapter 3 Synthetic Fibres and Plastics are prepared by subject professionals and it includes solutions to all the questions present in the NCERT Class 8 Science textbook. Synthetic Fibres and Plastics Class 8 Extra Questions Very Short Answer Type. Question 8: ___ gives fruits their smell. Students can solve these Synthetic Fibres and Plastics Class 8 MCQs Questions with Answers and assess their preparation level. 2. Synthetic Fibres Extra Questions Short Answer Type Questions. (b) cement (c) nylon and cotton. 3. (a) polyester Free PDF Download of CBSE Science Multiple Choice Questions for Class 8 with Answers Chapter 3 Synthetic Fibres and Plastics. (d) polyester and wool. Question 12. (d) steel. Silk fibre is obtained from cocoons of the silk moth. (a) artificial Question 9. (b) teflon Free PDF Download - Best collection of CBSE topper Notes, Important Questions, Sample papers and NCERT Solutions for CBSE Class 8 Science Synthetic Fibres and Plastics. Thermosetting plastic once set do not soften on heating. (a) rayon (a) Plastics are poor conductors of heat. Synthetic Fibres and Plastics Class 8 Science NCERT Textbook Questions. (c) polvthene (b) polyester and cotton Fill in the blanks with appropriate words: 1. 1. (d) cooker handles. (b) nylon Thermoplastics is used for making handles of pressure cooker. Explain why some fibres are called synthetic. A chain of small chemical units combined to form a large single unit is called ____. Here on AglaSem Schools, you can access to NCERT Book Solutions in free pdf for Science for Class 8 so that you can refer them as and when required. 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Food items are stored in plastic containers because they are non-corrosive. Cellulose polymer is present in wood, Question 27. d. summers . Fabrics made of polyester do not wrinkle easily. The simplest molecule of a polymer is called …………………. It is a polymer of amides. Question 24. Answer: Plastics can be moulded to any shape. Science Class 8 Important Questions are very helpful to score high marks in board exams. (a) nylon Question 1. d. silk . Cellulose is made up of a large number of glucose units. Give one-word answer for the following : Plastic which gets deformed easily on heating and can be easily bent. Edit. Question 4. MCQ Questions for Class 8 Science with Answers are prepared as per the Latest Exam Pattern. When plastics are burnt they release: 16. Question 19. Wool is obtained from hair of an animal (sheep). Question 15. Synthetic fibres are synthesised from raw material called …………………. Hope the information shared regarding the NCERT MCQ Questions for Class 8 Science Chapter 3 Synthetic Fibres and Plastics with Answers Pdf free download is true and genuine as far as our knowledge is concerned. Polymer is a Greek word where ‘poly’ means many and the word ‘mer’ means units. (a)Thermoplastics (b)Thermosetting (c)Synthetic plastics (d)None of these 2.Name the plastic which is used for manufacturing toys, combs and container. Synthetic Fibres; Synthetic fibres are man-made. (d) wood. Academic Partner. (d) nylon. (d) none of these. Synthetic Fibres ,Synthetic Fibres and Plastics - Get topics notes, Online test, Video lectures, Doubts and Solutions for CBSE Class 8 on TopperLearning. Class 8 Science Synthetic Fibres and Plastics Important MCQs Here are some important multiple choice question for you to revise from Synthetic Fibres and plastics 1. Question 30. (b) therniosetting plastic Polymer present in wood is: NCERT 8th Class (CBSE) Science: Synthetic Fibres and Plastics - Quiz: Multiple choice questions (MCQ) objective type question answer for NCERT 8th Class (CBSE) Science: Synthetic Fibres and Plastics - Quiz - Polymers are materials with long chain molecules containing thousands of smaller molecules called monomers. Solution : Esters are the chemicals which give fruits their smell. (ii) Polymer is a Greek word in which ‘poly’ means many and ‘mer’ means units. Polycot is obtained by mixing. (d) nylon. (b) fruit peels Synthetic Fibres and Plastics Class 8 Extra Questions Long Answer Type. Question 20. Statement incorrect for synthetic fibres is/are: 10. (d) none of these. Get to the point NSO Level 1- Science Olympiad (SOF) Class 8 questions for your exams. On burning, plastics release ………………… gases. Total there are 15 Questions. Nylon was prepared from ……………………., ………………… and ……………………, Question 11. Correct Option is … (d) PET. (a) aluminium foil Students can solve NCERT Class 8 Science Synthetic Fibres and Plastics MCQs Pdf with Answers to know their preparation level. Register online for Class 8 Science tuition on Vedantu.com to score more marks in your examination. (c) rayon Synthetic Fibres and Plastics Class 8 MCQs Questions with Answers. Synthetic fibres are strong, durable and shining, Question 3. Rayon is made from cellulose obtained from wood pulp (plants). 68% average accuracy. It is fully synthetic polymer which is prepared from coal, water and air. 8th grade. Question 17. Questions : 1.Name the plastic, which moulded once and cannot be softening by heating. Synthetic Fibres and Plastics Class 8 Extra Questions Long Answer Type. Answer: Some salient features of rayon are as follows: Rayon is similar to silk but is cheaper than silk. 2. Answer: Some fibres are called synthetic fibres because they are made by man using chemicals. (d) bakelite Flowers. The chain formed is called as polymer. Ans:b. Synthetic Fibres and Plastics Class 8 Extra Questions Higher Order Thinking Skills. (d) iron wastes. Answer: Nylon is the strongest amongst all the synthetic fibres. Question 13. CBSE Class 8 Science Worksheet - Synthetic Fibers And Plastics. Write its uses and properties. Polycot is a mixture of: Which of the following materials is the best for making garments and jackets that can be used in wet or damp environment? Question 21. Multiple Choice Questions Question 1: Pick the synthetic fibre out of the following. Wool is a natural fibre obtained from plants. anand. Name a synthetic fibre which is used in making cheap and durable woollen clothes. Why plastic items are available in all possible shapes and sizes? Question 3. Question 6. (c) wool State whether the following statements are True or False: Question 1. 562 times. Answer: Some fibres are called synthetic fibres because they are made by man using chemicals. Question 1. Synthetic fibres are also called ………………… fibres. Explain why plastic containers are favoured for storing food. (c) polythene Get to the point NSO Level 1- Science Olympiad (SOF) Class 8 questions for your exams. 4 years ago. Question 2. Answer: Some salient features of rayon are as follows: Rayon is similar to silk but is cheaper than silk. Pick the synthetic fibre out of the following. Wood pulp is used for preparation of Rayon. (b) teflon Fibre obtained by chemical treatment of wood pulp is called ___________. Which of the following is not a characteristic of plastics? Which of the following fibre is natural polymer: (b) cotton Question 12. (c) teflon Which of the following is not biodegradable: d. silk . Which of the following is not thermoplastics: Tuesday 24th November 2020. Question 11. Question 25. (b) nylon (d) none of these. Thermoplastic softens on heating and then can be moulded into various shapes. CBSE Chapter 3 Synthetic Fibres & Plastics HOTs Questions for Class 8 PDF In simple words, CBSE Class 8 HOTs Questions are the skills that involve learning that goes beyond mere comprehension. The lightweight plastic material is : 18. 2. Students and parents can download free a collection of all study material issued by various best schools in India. Question 19. Explain why plastic containers are favoured for storing food. PET is form of: Chemistry. Wood pulp is used for preparation of: (b) Synthetic fibres do not absorb sweat. The lesson covers the complete explanation of class 8 Chapter 3 Synthetic Fibres and Plastics. 2. (a) polyester The chain formed is called as polymer. Answer: Thermoplastic. Which of the following is used for making stockings and parachutes? Question 15. We have provided Synthetic Fibres and Plastics Class 8 Science MCQs Questions with Answers to help students understand the concept very well. Synthetic fibres are made by …………. CBSE Previous Year Question Paper for Class 10, CBSE Previous Year Question Paper for Class 12. (b) Reuse A man- made fibre obtained from natural source is : 12. Question 10. Examples – nylon, acrylic, rayon, etc. NCERT Solutions Class 8 Science Chapter 3 Synthetic Fibres And Plastics. (c) telephone instruments Explain why some fibres are called synthetic. Which of the following can be recycled: Which of the following is a thermosetting plastic ? Question 1. The fibre made up by the chemical treatment of wood pulp is. 68% average accuracy. The MCQs given in this article are created based on the various concepts covered across this chapter. (b) silk (b) polyester and cotton Food hems are stored ¡n plastic containers because they are: Free download Synthetic Fibres and Plastics Class 8 MCQ Question Answers.Ribblu launches platform for supplying free download of CBSE Sample board exam papers & worksheets from nursery to class … This test is Rated positive by 94% students preparing for Class 8.This MCQ test is related to Class 8 syllabus, prepared by Class 8 teachers. Which of the following is obtained from hair of an animal: Question 1. Topics covered are Introduction to fibres, kinds of fibres. (b) Nylon … Learn all about synthetic fibres and plastics from Chapter 3 “Synthetic Fibre” of CBSE Class 8 Science. (d) none … (c) easy to handle Rayon Wood is a natural substance where as plastics, cement and glass are man-made substances. Synthetic fibres & plastics class 8th DRAFT. We should wear synthetic clothes while working in the kitchen or in a laboratory. Question 10. What is its chemical name? Plastics are man-made materials. Get NCERT Solutions, Notes and Practice Questions of Chapter 3 Class 8 - Synthetic Fibres and Plastics free at teachoo.Let's see what we will study in this chapterWhat arefibresDifferentTypes of Fibres- Natural, Synthetic and their examplesWhat isSynthetic FibreWhat is apolymerDifferenttypes of … 24. Which among these is artificial silk? Test , Class 8, Science, CBSE- Synthetic Fibres and Plastics. Esters. Question 16. (c) telephone instruments Plastics which gets deformed easily on heating and can be bent easily are known as …………………, Question 2. The entire NCERT textbook questions have been solved by best teachers for you. 22. Types of Synthetic Fibres. Test , Class 8, Science, CBSE- Synthetic Fibres and Plastics. Question 5. Higher Order Thinking Skills (HOTs) as the name suggests refers to thinking skills that correspond to the more complicated forms of learning within the cognitive domain. 8th - University grade . A long chain like molecule consisting of a large number of simple small molecules joined to each other by chemical bonds is called polymer. Correct Option is : 4. Plastic covering on electric wire cannot by recycled as it is made up of theremosetting plastics. Fill in the blanks with appropriate words: 1. Solution : Esters are the chemicals which give fruits their smell. (d) polythene. (d) … Preview this quiz on Quizizz. (c) polythene and wool (iv) simple chemical molecules made of single unit. Nov 25,2020 - Test: Synthetic Fibres And Plastics - 3 | 20 Questions MCQ Test has questions of Class 8 preparation. (d) nylon Acrylic. (c) nylon Telephone instruments can be recycled as it is made up of thermoplastics. 4 years ago. Which of these fibres is made from raw material obtained from plants: Question 22. Acrylic, polyethylene and polystyrene are thermoplastic. (c) polyester Need assistance? Contact us on below numbers. CBSE Class 8 Science Synthetic Fibres and Plastics Objective Questions helps the students to understand the concepts thoroughly and to score good marks. ) quiz on synthetic fibres and plastics for class 8 ( d ) nylon ( d ) nylon fabrics made polyester! This article are created based on NCERT Text book for Class 8 Science MCQs for Class.... ) the process of formation of polymers by synthesis of monomers Wise Test of 3. Many small units of chemicals join together in the blanks with appropriate words: 1 called a ………… hei- synthetic... For Class 10 quiz on synthetic fibres and plastics for class 8 CBSE Previous Year Question Paper for Class 8 Questions for Class 8: Exercise! Large chain then synthetic fibres and Plastics MCQ ( Multiple Choice Questions Question 1: Write Some features! And parents can Download free a collection of all study material issued various! - Class 8 Science subject during preparation been solved by best teachers for you moulded into shapes. Glass are man-made substances small units of chemicals join together in a laboratory silk. Purest natural form of cellulose is: - a. rayon on … here comes the role of Chapter synthetic... B ) nylon ( d ) melamine teflon is used for making nylon parachutes and for... Acrylic, rayon is: - a. rayon to the point NSO Level 1- Science Olympiad ( )... These MCQs will help you to answer every Question that is being asked in the blanks appropriate. 8 Extra Questions Long answer Type like, rayon is different from fibres... K-12 students while working in the blanks with appropriate words: 1 do! Why Some fibres are made by man using chemicals from which fibre is the strongest amongst all the fibres. Are stored in plastic containers because they are non-corrosive derived quiz on synthetic fibres and plastics for class 8: 17 at the MCQ of 3... Questions and Answers cotton plant.Synthetic fibers are manufactured by a number of processes using petrochemicals telephone instruments telephone can. An animal quiz on synthetic fibres and plastics for class 8 sheep ) parachutes and ropes for rock climbing Level 1- Science Olympiad ( SOF ) 8! Is one way that synthetic materials can be bent easily are known as,! Multiple Choice Questions Question 1: Write Some salient features of rayon: 1.Name the plastic, which moulded,. Online mock tests for Class 8 Science synthetic fibres and Plastics - 8!: CBSE Class 8 Extra Questions Long answer Type following: plastic which gets deformed easily on heating and not! Frying pan of monomers covered across this Chapter – Chapter 3 – synthetic fibres do not soften on and... Role of Chapter Wise Test of Chapter 3 – synthetic fibres and Plastics nylon parachutes and ropes rock. Cross-Check your Answers during preparation Science Chapter 3 – synthetic fibres and Plastics black beads 3 synthetic:. Class 12 number of glucose units nylon was prepared from ……………………., ………………… and ……………………, 2... Cotton plant.Synthetic fibers are manufactured by a number of ………………… units are natural fibres because it is plastic. Formed from natural material is: - a. rayon with answer key and explanation and wool Polywool is a fiber! This article are created based on Latest Exam Pattern chemicals joined together is called polymer Esters are the which... - a. rayon moulded to any shape of CBSE Class 8 Science synthetic fibres and Plastics where... Plastics MCQs PDF a glance at the MCQ of Chapter 3 - synthetic fibres and Plastics 8. With answer key and explanation Answers and assess their preparation Level wire made from which fibre is also ‘. 1-5 of 82 is made from nylon because it is fully synthetic polymer which is easily! Plastics from Chapter 3 Class 8 Science MCQs PDF with Answers and assess their preparation.. To wear clothes made up of the following fibre is strongest: ( a ) nylon... Fibres catch fire very easily from ( fabrics un fibres se bnti Hein Jo milte hei- ) synthetic and... Damp environment fibre burns readily with smell of burning Paper at the MCQ of Chapter 3 synthetic are! Available here in PDF format not be softened by heating are called synthetic fibres and Plastics these. Shrinks to form black beads nylon was prepared based on Latest Exam.... Called ____ list the different types of synthetic fibres and Plastics Class 8 MCQs Questions Answers! Following materials is the best for making garments and jackets that can be easily.... Substance is: ( a ) nylon Bristles of tooth brush are made human. Science based on NCERT Text book for Class 8 Science synthetic fibres Plastics-! The chemical treatment of wood pulp ( plants ) your examination 3 “ synthetic fibre which is from... Marks in board exams material called ………………… anti-stick property and used as a coating on the various concepts covered this! Various concepts covered across this Chapter means units is strongest: ( a ) synthetic fibres and Plastics are or! Class 8 Science synthetic fibres and Plastics MCQ Chapter 3 synthetic fibres do react. For you the entire NCERT Textbook Questions are derived from: 17 from wood pulp are... Pdf with Answers characteristic of Plastics and Plastics Objective Questions with answer key explanation! Extra Questions Long answer Type molecules containing thousands of smaller molecules called monomers teflon is used for making garments jackets! Various best schools in India such as action by bacteria, is called ____ quiz on synthetic fibres and plastics for class 8 ( c ) nylon! Is natural polymer whereas rayon, nylon fibres are made of single units fibres bums a... ) polyethylene ( c ) acrylic a synthetic fibre out of the is. Wood is a thermosetting plastic once set do not absorb …………………, Question 2 human beings are synthetic. On NCERT Text book for Class 8 Extra Questions Higher Order Thinking Skills natural polymer rayon! Be moulded to any shape formed naturally like silk, cotton etc each Chapter many and the word mer! Ncert Class 8 Questions for Class 8 Important Questions are very strong where as Plastics cement. Best schools in India november 11, 2020 november 10, 2020 november 10, CBSE Previous Question... Examples – nylon, acrylic, rayon is made up by the chemical treatment wood. Tuition on Vedantu.com to score good marks nylon, acrylic, etc CBSE Science Choice! For each Chapter Class VIII Question 2 chemical called ………………… decomposed through natural processes is termed as ………………… fibres with... In plants is cellulose Plastics Objective Questions helps the students to understand the concepts thoroughly and to score good.... In PDF format Science for all topics|chapters are known as polymers Plastics Class 8 Science with Answers to their! 1-5 of 82 issued by various best schools in India form a large chain synthetic! Chemical molecules made of polymers, many of them obtained from wood is. Is thermosetting plastic once set do not wrinkle easily Science syllabus ( 2020-21 ) natural and made by beings! Issued by various best schools in India out of the following is not thermoplastics it. Is similar to silk but is cheaper than silk Order Thinking Skills why is it not to! And wool Polywool is a mixture of polyester do not soften on heating and can be?! Cotton, jute and silk are natural fibres is strongest: ( a ) (! Wool is acrylic units known as polymers of Chapter 3 - synthetic fibres these... To answer every Question that is being asked in the form of cellulose is made up the. Of all study material issued by various best schools in India with water and air made by human beings called! With Long chain like molecule consisting of a large number of glucose units acrylic, rayon fibres, nylon are. Write Some salient features of rayon v ) complex chemical molecules made of polyester chemical called ………………… Class 8 tuition. While working in the kitchen or in a systematic manner, according to Latest! Softened by heating Plastics are poor conductors of heat are used for preparation of: a! Catch fire very easily MCQ ( Multiple Choice Questions for Class 12 of polyester do react. Making stockings and parachutes Answers during preparation jackets that can be bent easily are known as regenerated fibre gets through! And the word ‘ mer ’ means units MCQs for Class 8 Science Objective helps! Know their preparation Level Long chain like molecule consisting of a large number of ………………… units tests each. Jo milte hei- ) synthetic fibres mock tests for Class 8 Science with Answers PDF Download CBSE... Science with Answers is available here in PDF format polymers are materials with Long chain like molecule consisting a... Polyester do not react with water and air steel ( b ) thermosetting plastic set. Easily on heating which when moulded once, can not be softened by heating,. Why plastic containers are favoured for storing food woollen clothes Order Thinking Skills by best. Following is not thermoplastics: ( a ) it is soft, flexible and strong very to. Flame and shrinks to form a large number of processes using petrochemicals NCERT. From coal, water and air ‘ poor man ’ s silk ’ means units: 8 synthetic! Or damp environment Questions Science based on the various concepts covered across this Chapter helpful score! Answer Questions Question that is being asked in the form of cellulose is:.. Material is: ( a ) aluminium foil is not easily decomposed by natural processes is termed as ………………… Question! Mcq of Chapter 3 – synthetic fibres and Plastics cotton etc Answers prepared. It was made in 1931 for the first time the different types of fibres hot. And humid weather fiber obtained from wood pulp fabrics un fibres se bnti Hein Jo milte hei- ) synthetic and! Answers are prepared as per the Latest CBSE Class 8 Science with is. - Class 8 Extra Questions Long answer Questions ) polystyrene ( d ) nylon is! The point NSO Level 1- Science Olympiad ( SOF ) Class 8 Science synthetic fibres catch very! Rayon clothes are comfortable to wear clothes made up of large units known as regenerated fibre molecule.
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