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प्रश्न
Fill in the blanks with appropriate words.
Synthetic fibres are synthesised from raw materials called ______
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उत्तर
Synthetic fibres are synthesised from raw materials called petrochemicals.
संबंधित प्रश्न
‘Manufacturing synthetic fibres is actually helping conservation of forests’. Comment.
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.
The world’s most valuable fiber is ______.
The material similar to silk in appearance is ______.
The synthetic fibres are also known as ______ fibres.
The first fully synthetic fibre was ______.
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
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 the importance of synthetic polymers in our life.
______ is a synthetic fibre which is strong and elastic that it has the ability to bounce.
