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प्रश्न
Which of the following groups contain all synthetic substances?
पर्याय
Nylon, Terylene, Wool
Cotton, Polycot, Rayon
PVC, Polythene, Bakelite
Acrylic, Silk, Wool
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उत्तर
PVC, Polythene, Bakelite
Explanation:
PVC, polythene and bakelite are synthetic substances.
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संबंधित प्रश्न
Give examples which indicate that nylon fibres are very strong.
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 |
Beans and peas are pulses.
Give reason.
Why umbrellas are made up of synthetic clothes?
True or False
It is good to wear clothes made of synthetic fibres while cooking.
Write the uses of synthetic fibers.
Pick the synthetic fibre out of the following.
The most suitable material for the preparation of handles of cooking utensils is ______.
The first fully synthetic fibre was ______.
Write an activity to show that synthetic fibres are stronger than the cotton fibres.
