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Learn Intext Exercise 15.3 with Free Lessons & Tips

Download Solutions as PDF

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

Buna − N is a copolymer of 1, 3−butadiene and acrylonitrile.

Buna − S is a copolymer of 1, 3−butadiene and styrene.

Comments
Harshit Bhardwaj

Arrange the following polymers in increasing order of their intermolecular forces. Nylon 6,6, Buna-S, Polythene.

Different types of polymers have different intermolecular forces of attraction. Elastomers or rubbers have the weakest while fibres have the strongest intermolecular forces of attraction. Plastics have intermediate intermolecular forces of attraction. Hence, the increasing order of the intermolecular forces of the given polymers is as follows:

(i) Buna − S < polythene < Nylon 6, 6

(ii) Neoprene < polyvinyl chloride < Nylon 6

Comments
Harshit Bhardwaj
All Exercises - Chapter 15 - Polymers
Intext Exercise 15.1
Intext Exercise 15.2
Intext Exercise 15.3
NCERT Exercise 15
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