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प्रश्न
Mark (✓) the correct answer:
Rayon is different from synthetic fibres because
पर्याय
it has a silk like appearance
it is obtained from wood pulp
its fibres can also be woven like those of natural fibres
उत्तर
Rayon is different from synthetic fibres because it is obtained from wood pulp.
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संबंधित प्रश्न
Explain why some fibres are called synthetic.
Give examples which indicate that nylon fibres are very strong.
Synthetic fibre is also called _______ fibre.
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.
Complete the Analogy:
______: Films:: Nylon: Fishing nets.
The material similar to silk in appearance is
Cotton is a natural polymer. What is its chemical name?
Indicate whether the following statement is True or False. Also write the false statement in their correct form.
Synthetic fibres do not melt on heating.
Write an activity to show that synthetic fibres are stronger than the cotton fibres.
Ramya loves to were clothes made up of synthetic fibres. When she was working in the kitchen, her mother advised her not to wear synthetic clothes.
- Why does Ramya’s mother advise her not to wear synthetic clothes while working in the kitchen?
- Why does Ramya love to wear synthetic dresses?
