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If unknown samples are given, how do you...

If unknown samples are given, how do you decide whether it is thermoplastic or thermosetting

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  • SYNTHETIC FIBRES AND PLASTICS

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NCERT TELUGU-SYTHETIC FIBERS AND PLASTICS-EXERCISE
  1. What is the name given to plastics which are deformed easily on heati...

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  2. Can you tell Tupperware is thermosetting plastic or thermo plastic?

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  3. If unknown samples are given, how do you decide whether it is thermopl...

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  4. Thermosetting plastic ?

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  5. If you burn a piece of wood, paper, cloth, steel rod, do you notice si...

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  6. How natural fbres different from plastics ?

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  7. Identify whether given plastic material is thermoplastic or thermosett...

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  8. Biodegradable-Non biodegradable: Let's take peels of fruits and vegeta...

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  9. Biodegradable-Non biodegradable: Let's take peels of fruits and vegeta...

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  10. What is the name given to certain material which can be break down int...

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  11. What is the name given to certain material which can be break down int...

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  12. What do we call the material which are not decomposed by natural proce...

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  13. Name two natural fibres used in making fabric.

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  14. Name two natural fibres obtained from plants.

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  15. What is polymer ?

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  16. List five things which we can make using each of the following materia...

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  17. Which are made up of acrylic.

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  18. What is the synthetic fibre “Nylon” is made of ?

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  19. How is a rayon better fibre than silk for making cloth?

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  20. Chandana, after drinking “Thums up” from a cool drink bottle noticed t...

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