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What are LDPE and HDPE? Give two uses of...

What are LDPE and HDPE? Give two uses of polyethylene.

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CHHAYA PUBLICATION-POLYMERS -EXERCISE
  1. Classify the following as addition and condensation polymers: nylon, s...

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  2. Why don't polymers have a sharp melting point?

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  3. Name two monomers that take part in addition polymerisation.

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  4. Mention the various stages in addition polymerisation.

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  5. Give an example each of free radical, cationic and anionic polymerisat...

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  6. How does chain initiation and chain propagation take place in free rad...

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  7. What do you mean by A-A and AA-BB polymerisation? Give an example of e...

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  8. What is copolymerisation? What is its purpose?

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  9. Give an example of a copolymer prepared by each of the following metho...

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  10. What are LDPE and HDPE? Give two uses of polyethylene.

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  11. Write the reaction for the preparation of polyethylene terephthalate. ...

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  12. Write the reaction for the preparation of glyptal. Give one of its app...

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  13. Write the reaction for the preparation of novolac. Give one use.

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  14. Write the reaction for the preparation of resole. Give one use.

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  15. What are Buna-S and Buna-N? Give their uses.

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  16. What is biodegradable polymer? Give two examples.

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  17. Write the reactions for preparation of nylon 6,6. Give two uses.

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  18. What do you mean by vulcanisation of rubber? Why is it necessary?

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  19. Why can't natural rubber be directly used?

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  20. Classify the biodegradable polymers on the basis of their origin. Give...

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