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Distinguish between natural and vulcanis...

Distinguish between natural and vulcanised rubber.

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CHHAYA PUBLICATION-POLYMERS -QUESTION-ANSWER ZONE FOR BOARD EXAMINATION
  1. Explain whether homopolymers an be prepared both addition and condensa...

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  2. What is copolymerisation? What is its purpose?

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  3. How are high density and low density polyethylenes (LDPE and HDPE) pre...

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  4. Write the reaction for the preparation of polyethylene terephthalate (...

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  5. Write the reaction for the preparation of glyptal. Mention two of its ...

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  6. Why is it important to vulcanise natural rubber?

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  7. Name the monomer of nylon-6. Mention its uses.

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  8. Distinguish between addition and condensation polymerisation.

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  9. What is degree of polymerisation ?

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  10. Explain the ways ln which chain termination occurs in free radical pol...

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  11. Distinguish between natural and vulcanised rubber.

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  12. Name the monomer of melamine formaldehyde polymer. Write its uses.

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  13. Why is It important to have monomers ln their purest form In free radi...

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  14. Why is bakelite known as a thermosetting polymer ?

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  15. Identify the following polymers according to their classes. -A-A-A-A...

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  16. Identify the following polymers according to their classes. -A-B-B-A...

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  17. Identify the following polymers according to their classes.

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  18. A natural polymer of 2-methyl-1,3-butadiene when treated with sulphur ...

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  19. Arrange the polymers in order of their increasing intermolecular force...

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  20. What is the role of sulphur in vulcanisation of natural rubber?

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