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प्रश्न
Short Answer Type Question:
What are synthetic fibres?
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उत्तर
The fibres which are made from chemical substances or which are not obtained from the plant and animal sources are called synthetic fibres. For example, polyester, nylon, and acrylic, etc.
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संबंधित प्रश्न
Classify the following fibre as natural or synthetic:
polyester
Classify the following fibre as natural or synthetic:
Jute
Animals fibres are ______ and ______.
A natural fibre is called ______.
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?
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.
Which of these is a natural fiber?
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?
Complete the given analogy.
Coir fibre : ________ :: Cotton fibre : Cotton Plant
