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प्रश्न
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
विकल्प
True
False
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उत्तर
This statement is False.
Explanation:
Synthetic fibres melt on heating.
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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 ______
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?
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.
List the advantages of synthetic fibres.
Complete the Analogy:
______: Films:: Nylon: Fishing nets.
Write the uses of synthetic fibers.
Indicate whether the following statement is True or False. Also write the false statement in their correct form.
It is risky to wear synthetic clothes while working in the kitchen
Write an activity to show that synthetic fibres are stronger than the cotton fibres.
