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प्रश्न
When you place a natural fibre in a flame it ______.
विकल्प
melts
burns
gets nothing
explodes
उत्तर
When you place a natural fibre in a flame it burns.
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संबंधित प्रश्न
Very Short Answer Type Questions:
How many types of fibres are there?
Very Short Answer Type Questions:
Name two synthetic fibres.
Classify the following fibre as natural or synthetic:
wool
Classify the following fibre as natural or synthetic:
Jute
Which of these is a synthetic fiber?
Terrycot is made by mixing two types of fibres. Write the names of the fibres.
A polymer is a chain of many small units joined together which are
called ______.
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
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)
Which of these is a natural fiber?
Complete the given analogy.
Coir fibre : ________ :: Cotton fibre : Cotton Plant
