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What are low density and high density po...

What are low density and high density polythenes? How are these manufactured ? Why do these differ in densities?

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ICSE-POLYMERS -EXERCISE (PART-II (DESCRIPTIVE QUESTIONS )) ( LONG ANSWER QUESTIONS )
  1. Define the following terms: Thermosetting plastics

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  2. Define the following terms: Elastomers

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

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  4. Give a brief description of natural and synthetic polymers

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

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

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

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

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

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  10. How is nylon-6, 10 prepared ?

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  11. What is teflon? What are its uses ?

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

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

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  14. Give one example of a polyester used as a synthetic fibre.

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  15. Name the compounds from which this polyester is prepared.

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  16. What type of condensation takes place in the formation of the polyeste...

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  17. Differentiate between thermoplastic and thermosetting polymers . Give ...

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  18. Give the monomers of the following polymers: (i) Teflon (ii) Bakeli...

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  19. Give any one example of a cross-linked synthetic polymer.

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  20. With reference to the polymer named by you: (1) Write the compounds ...

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