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Why are substances made of polymers ligh...

Why are substances made of polymers lighter than metallic substance?

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The density of polymers is much less than that of metals . Hence, substances made of polymers is much lighter .
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CHHAYA PUBLICATION-POLYMERS -QUESTION-ANSWER ZONE FOR BOARD EXAMINATION
  1. Give an example each of thermoplastic and thermosetting polymers.

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  2. Name a copolymer obtained by copolymerisation of three different monom...

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  3. Why are substances made of polymers lighter than metallic substance?

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  4. Which of the following forms self-polycondensation polymer?

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  5. Give two examples of copolymers.

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  6. Name two biodegradable polymers used in medicine.

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  7. Name the monomers used in the preparation of glyptal

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  8. Name the monomer of natural rubber

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  9. What is the trade name of trans-polyisoprene?

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  10. Which polymer is also known as plexiglass?

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  11. All polymers are macromolecules but all macromolecules are not polymer...

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  12. Why are solutions of polymers more viscous than normal solutions?

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  13. What do you mean by Ziegler-Natta catalyst? What is it used for?

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  14. What do 6 in nylon 6 and 6 and 10 in nylon 6, 10 indicate?

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  15. What is addition polymerisation? Mention its types.

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  16. Explain the chain initiation and chain propagation of free radical pol...

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  17. Explain the chain initiation and chain propagation of cationic polymer...

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  18. Name any two monomers that talce part in anionic polymerisation. Why i...

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  19. Explain whether homopolymers an be prepared both addition and condensa...

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  20. What is copolymerisation? What is its purpose?

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