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प्रश्न
Write the importance of synthetic polymers in our life.
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उत्तर
The importance of synthetic polymers in our life are as follows:
- Nylon: It is used for making ropes for rock climbing, fishing nets, raincoats, parachutes and tyre cords, etc.
- Acrylic: It is used for sweaters, track suits, linings for boots and gloves and In furnishing fabrics and carpets.
- Terylene: It is used in the textile industry to make clothes like sarees, tapestry and dress material. It is also mixed with natural fibres like cotton and wool to make a greater variety of clothes.
- Plastics: It is used to store food items, water, milk, pickles, dry food, etc. Plastic containers seem most convenient.
This is because of lightweight, low price, good strength and easy handling as compared to metals. Plastics are used in cars, air crafts and spacecrafts.
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संबंधित प्रश्न
Explain why some fibres are called synthetic.
A synthetic fibre which has similar properties to wool is______.
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 world’s most valuable fiber is ______.
Choose the odd one:
What do you mean by synthetic fiber?
The most suitable material for the preparation of handles of cooking utensils is ______.
Which of the following groups contain all synthetic substances?
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?
Write an activity to show that synthetic fibres are stronger than the cotton fibres.
