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प्रश्न
Which set of substances is not used for making fibres?
विकल्प
Silk, chemicals
Yak hair, camel hair
Husk, bones
Flax, wool
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उत्तर
Husk, bones
Explanation:
(a) Silk, chemicals
✅ Used for fibres:
-
Silk is a natural animal fibre from silkworms.
-
Chemicals are used to make synthetic fibres like nylon and polyester.
(b) Yak hair, camel hair
✅ Used for fibres:
-
Both are animal fibres used to make woollen clothes, carpets, etc.
(c) Husk, bones
❌ Not used for fibres:
-
Husk is the outer covering of grains, and bones are part of the skeleton.
-
Neither is used in fibre or textile production.
(d) Flax, wool
✅ Used for fibres:
-
Flax gives linen fibres, and wool comes from sheep.
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संबंधित प्रश्न
Very Short Answer Type Questions:
Name two synthetic fibres.
Classify the following fibre as natural or synthetic:
nylon
Spinning is a process of making fibres.
Animals fibres are ______ and ______.
When you place a natural fibre in a flame it ______.
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 |
Selective breeding is a process of ______.
Which of the following is not a natural fibre?
Describe the two main processes of making fabric from yarn.
