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प्रश्न
A synthetic fiber which looks like silk is obtained by chemical treatment of wood pulp. It is, therefore, known as artificial silk. What is its common name?
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उत्तर
Its common name is rayon. Rayon is often regarded as artificial silk.
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संबंधित प्रश्न
Mark (✓) the correct answer:
Rayon is different from synthetic fibres because
Fill in the blanks with appropriate words.
Synthetic fibres are synthesised from raw materials called ______
Give examples which indicate that nylon fibres are very strong.
Match the terms of column A correctly with the phrases given in column B.
| A | B | ||
| 1 | Polyester | a | Prepared by using wood pulp |
| 2 | Teflon | b | Used for making parachutes and stockings |
| 3 | Rayon | c | Used to make non-stick cookware |
| 4 | Nylon | d | Fabrics do not wrinkle easily |
Give reason.
Why umbrellas are made up of synthetic clothes?
The world’s most valuable fiber is ______.
Complete the Analogy:
______: Films:: Nylon: Fishing nets.
The material similar to silk in appearance is ______.
Which of the following groups contain all synthetic substances?
______ is a synthetic fibre which is strong and elastic that it has the ability to bounce.
