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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
Give examples which indicate that nylon fibres are very strong.
‘Manufacturing synthetic fibres is actually helping conservation of forests’. Comment.
Give reason.
Why umbrellas are made up of synthetic clothes?
Crossword
Across
1. Fibre that is used as synthetic wool.
2. A plastic used for making water bottles.
3. A long chain made of small repeatingmonomers.
4. Another name for this semi-synthetic fibre is artificial silk.
Down
5. A type of fibre that is naturally obtained from a cocoon.
6. A synthetic fibre classified as polyester.
7. A polymer used for making rope.
The artificial fibers are also known as ______.
Complete the Analogy:
______: Films:: Nylon: Fishing nets.
Write the uses of synthetic fibers.
The synthetic fibres are also known as ______ fibres.
The first fully synthetic fibre was ______.
