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प्रश्न
Classify the following fibre as natural or synthetic:
Jute
पर्याय
natural
synthetic
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उत्तर
natural fibre
संबंधित प्रश्न
Very Short Answer Type Questions:
Name two natural fibres.
A lady went to the market to buy a blanket. The shopkeeper showed her blankets made of acrylic fibres as well as made of wool. She preferred to buy an acrylic blanket. Can you guess why?
A polymer is a chain of many small units joined together which are called ______.
Match items in List A with the items of list B.
| List A | List B |
| (a) nylon | (i) non-stick coating |
| (b) PET | (ii) electric switches |
| (c) rayon | (iii) parachutes |
| (d) thermosetting plastics | (iv) polyester |
| (e) teflon | (v) artificial silk |
Complete the crossword given below with the help of clues.
Across
- Substance used as synthetic wool. (7)
- A plastic used for making containers and carry bags. (9)
- Substance made up of large number of smaller molecules. (7)
- Another name for this compound is artificial silk. (5)
Down
5. A type of fibre obtained naturally from cocoon. (4)
6. A synthetic fibre classified as polyester. (8)
7. A polymer used for making ropes. (5)
Hair trap a lot of ______, which is a poor ______ of heat.
Write various steps for processing fibres into wool.
Which of these is a natural fiber?
Which of the following is not a natural fibre?
The following is an answer given by Boojho to a question asked by his teacher - “Cotton, wool, silk and jute are classified as natural fibres whereas nylon and polyester are classified as synthetic fibres”.
Can you tell what question the teacher has asked?
