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What is vulcanization? How does vulcaniz...

What is vulcanization? How does vulcanization improve the quality of natural and synthetic rubbers.

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ICSE-POLYMERS -EXERCISE (PART-II (DESCRIPTIVE QUESTIONS )) ( LONG ANSWER QUESTIONS )
  1. Elaborate the structure of natural rubber.

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  2. How do double bonds in rubber molecules influence their structure and ...

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  3. What is vulcanization? How does vulcanization improve the quality of n...

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  4. What is the monomer of natural rubber? What is the difference in the s...

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  5. What is vulcanization ? Why is it done? Why is diphenyl added to rubbe...

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  6. Why is neoprene non-inflammable? Give one of its uses.

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  7. Define the following terms: Thermoplastics

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  8. Define the following terms: Thermosetting plastics

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  9. Define the following terms: Elastomers

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  10. Give two points of difference between thermoplastic and thermosetting ...

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  11. Give a brief description of natural and synthetic polymers

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  12. What do you mean by copolymerization ? What are its advantages over ho...

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  13. How is dacron prepared ? Name the type to which this polymer belongs?

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  14. How will you prepare the following (a) Buna-S (b) Bakelite (c) Tefl...

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  15. What are low density and high density polythenes? How are these manufa...

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  16. How are teflon and nylon-6 synthesised ? Identify the type of polymeri...

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  17. How is nylon-6, 10 prepared ?

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  18. What is teflon? What are its uses ?

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  19. Write the names and structures of the monomers of bakelite. To which c...

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  20. What is polypropene ? Give its two important uses.

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