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प्रश्न
The most suitable material for the preparation of handles of cooking utensils is
पर्याय
polythene
PVC
nylon
bakelite
उत्तर
bakelite
Explanation -
Bakelite is used for making the handles of various cooking utensils because it is a poor conductor of heat and does not become soft on getting heated.
APPEARS IN
संबंधित प्रश्न
Explain why some fibres are called synthetic.
Fill in the blanks with appropriate words.
Synthetic fibres are also called ______ or _______ fibres.
Match the terms of column A correctly with the phrases given in column B.
| A | B | ||
| 1 | Polyester | a | Prepared by using wood pulp |
| 2 | Teflon | b | Used for making parachutes and stockings |
| 3 | Rayon | c | Used to make non-stick cookware |
| 4 | Nylon | d | Fabrics do not wrinkle easily |
True or False
It is good to wear clothes made of synthetic fibres while cooking.
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 artificial fibers are also known as ______.
What do you mean by synthetic fiber?
Cotton is a natural polymer. What is its chemical name?
Write the importance of synthetic polymers in our life.
