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What are polymers ?...

What are polymers ?

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Polymers are high molecular mass substances `(10^(3) - 10^(7))"u")` consisting of a very large number of simple repeating structure units joined together through covalent bonds in a linear fashion. They are also called macromolecules. Ex : polythene, nylon 6,6, bakelite, rubber, etc.
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NCERT ENGLISH-POLYMERS-Exercise
  1. What are polymers ?

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  2. Write the names of monomers of the following polymers :

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  3. Classify the following as addition and condensation polymers : Teryl...

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  4. What is the difference between Buna-N and Buna-S.

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  5. Arrangement the following polymers in increasing order of their interm...

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  6. Explain the terms polymer and monomer.

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  7. What are natural and synthetic polymers ? Give two examples of each ty...

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  8. Distinguish between the terms homopolymer and copolymer and give an ex...

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  9. How do you explain the functionality of a monomer?

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  10. Define the term polymersation.

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  11. Is(NH-CHR-CO)(n)a homopolymer or copolymer?

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  12. In which classes, the polymers are classified on the basis of molecula...

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  13. How can you differentiate between addition and condensation polymerisa...

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  14. Explain the term copolymersation and give two examples.

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  15. Write the free radical mechanism for the polymersation of ethene.

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  16. Define thermoplastics and thermosetting polymers with two examples of ...

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  17. Write the monomers used for getting the following polymers. (i) Poly...

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  18. Write the name and structure of one of the common initiators used in f...

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  19. How does the presence of double bonds in rubber molecules influence th...

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  20. Discuss the main purpose of vulcanisation of rubber.

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