polyester is a natural fibre true or false

(False) (g) Polyester is a natural fiber. Rayon synthesised for the first time in England. Answer. Rayon is the first man-made cellulose fibre. False. fill in the blanks: Answer. Soln: i) True ii) False- Synthetic fibres … c) We get jute fibres from the outer layer of a stem of the jute plant. (False) 3.Question. 4. Rayon is a natural fibre. Explanation: a)& b) Process of making yarn from fibres is called spinning. State whether the following statements are true or false: (a) Yarn is made from fibres. (b) Spinning is a process of making fibres. Answer: a) True b) False c) False d) True e) True f) False g) False. (a) Plant fibers are obtained from cotton and jute. Check the below NCERT MCQ Questions for Class 8 Science Chapter 3 Synthetic Fibres and Plastics with Answers Pdf free download. (a) True (b) False; The process of making yarn from fibres is called spinning. 3. 6. We have provided Synthetic Fibres and Plastics Class 8 Science MCQs Questions with Answers to help students understand the concept very well. Question 1 Classify the following fibres as natural or synthetic: nylon, wool, cotton, silk, polyester, jute. Q. Answer ... State whether the following statements are True or False: Question 1. Synthetic Fibres : nylon, polyester. Which of the following fibre is natural polymer: (a) rayon (b) cotton (c) polyester (d) polythene. Answer: Natural Fibres : wool, cotton, silk, jute. Answer : (i) Natural fibres: Wool, silk, cotton, jute. f) Silk fibre is obtained from the stem of the plant. 4.Question. True or False Natural fibers are derived from wood pulp, petroleum, natural gas, and similar substances. Nylon was made in 1931. TRUE True or False: A first step in the forensic examination of fibers is to compare color and diameter. Rayon is made from cellulose obtained from wood pulp. 2. True. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. g) Polyester is a natural fibre. (True) (f) Silk fiber is obtained from the stem of a plant. b) Spinning is a process of making fibres. Answer. True. 7. D-opacity. (iii) It is risky to wear synthetic clothes while working in the kitchen. (ii) Synthetic fibres do not melt on heating. (c) False; Jute fibre is obtained from the stem of jute plant. True or False PLA fibers are similar to cotton in appearance. True. 1. Classify the following fibres as natural or synthetic: nylon, wool, cotton, silk, polyester, jute. True or False: Polyester was the first synthetic fiber. Question 2. True or False State whether the given statements are true or false. Polyester fibres are used for making hand knit sweaters. (i) The fabric terry wool is obtained by mixing terylene and wool. Natural fibers, such as wool or cotton, will give a better protection when welding than synthetic fibers like polyester. IV. Question 2. True or False Polyester is a high-performance fiber often blended with cotton. Polyester is the strongest synthetic fibre. Also, write false statements in their correct form. (ii) Synthetic fibres: Nylon, polyester. Artificial silk is another name for silk. Question 2 State whether the following statements are true or false: a) Yarn is made from fibres. True) (e) Weaving yarn makes a piece of fabric. Answer. (g) Polyester is a natural fibre. 5. (b) Animals fibers are silk and wool. From which parts of the cotton and jute are obtained? (iv) Most of the plastics are biodegradable. Exam pattern are similar to cotton in appearance PLA fibers are obtained from the layer... Below NCERT MCQ Questions for Class 8 Science with Answers Pdf free.. Risky to wear synthetic clothes while working in the kitchen with cotton or cotton, silk, cotton,,... Blended with cotton are silk and wool when welding than synthetic fibers like polyester to synthetic... 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