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Q. Which one of the following is a copolymer?

NTA AbhyasNTA Abhyas 2020Polymers

Solution:

Polymers whose repeating units are derived from two or more types of monomer units, are called copolymer. Only Buna-S is obtained by the copolymerization of butadiene and styrene monomers. Other polymers B, C and D are homopolymers, because they consist of only one type of monomers.