Q5 of 30 Page 435

Explain the difference between Buna-N and Buna-S.























Buna-S



Buna-N



1. It is formed from 1,3- butadiene and styrene in presence of sodium.



1. It is formed from 1,3-butadiene and acrylonitrile in presence of sodium.



2. Bu refers Butadiene, Na refers Sodium and S refers Styrene



2. Bu refers Butadiene, na refers Sodium and N refers acrylonitrile



3. It is used for making automobile tyres, rubber belts, etc.



3. It is used for manufacturing of tank linings, protective gloves etc.



4.




4.





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3

Write the names of monomers of the following polymers:

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Classify the following as addition and condensation polymers: Terylene, Bakelite, Polyvinyl chloride, Polythene.

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Arrange the following polymers in increasing order of their intermolecular forces.

(i) Nylon 6,6, Buna-S, Polythene.


(ii) Nylon 6, Neoprene, Polyvinyl chloride.

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Explain the terms polymer and monomer.