Class 8 Science Chapter 3 | Synthetic Fibres and Plastics NCERT Solutions 1. Explain why some fibres are called synthetic. Answer: Those fibres which are prepared by man using chemicals are called synthetic fibres. They are formed by combination of large number of small molecules joined together. For ex: Rayon, nylon, polyester, acrylic etc. 2. Mark (√ ) the … [Read more...] about Chapter 3 Synthetic Fibres and Plastics
plastics
Plastics
Question 1 What are plastics? Question 2 Give few examples of plastics? Question 3 Give few uses of polythene? Question 4 Give few use of polyvinyl chloride? Question 5 Give few uses of bakelite? Question 6 Give few uses of melamine? Question 7 Give few uses of teflon? Question 8 Write 2 characteristics of bakelite? Question 9 Write 2 characteristics of … [Read more...] about Plastics