Advertisements
Advertisements
प्रश्न
Write the importance of synthetic polymers in our life.
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 textile industry to make clothes like sarees, tapestry and dress material. It is also mixed with natural fibre like cotton and wool to make more variety of clothes.
- Plastics It is used to store food item, water, milk, pickles, dry food, etc. Plastic containers seem most convenient.
This is because of light weight, low price, good strength and easy handling as compared to metals. Plastics are used in cars, air crafts and spacecrafts.
APPEARS IN
संबंधित प्रश्न
Explain why some fibres are called synthetic.
Mark (✓) the correct answer:
Rayon is different from synthetic fibres because
Fill in the blanks with appropriate words.
Synthetic fibres are also called ______ or _______ fibres.
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 |
Beans and peas are pulses.
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.
What do you mean by synthetic fiber?
Pick the synthetic fibre out of the following.
Cotton is a natural polymer. What is its chemical name?
The first fully synthetic fibre was ______.
