NCERT solution for class 8 // Science // Chapter 3 - Synthetic fibres and plastics
NCERT solutions > class 8 > science > Chapter 3 NCERT solution for class 8 // Science // Chapter 3 - Synthetic fibres and plastics Chapter 3 - Synthetic fibres and plastics Q1. Explain why some fibres are called synthetic Ans - The fibres which are prepared by man by using chemicals are called synthetic fibre these are made by the joining of small units called monomer to form a long chain of polymer Example - Rayon, Nylon, Acrylic, Polyester etc are the synthetic fibres Q2. Mark the correct answer Rayon is different from synthetic fibres because a) It has a silk like appearance b) It is obtained from wood pulp c) Its fibre can also be woven like those of natural fibres Ans - It is obtained from wood pulp Q3. Fill in the blanks with appropriate words a) Synthetic fibres are also called artificial or man made fibres b) Synthetic fibres are synthesized from raw material called petrochemicals c) Like synthetic fib...