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The polymer of type [-AAAABBBAAAABBB-]n, where A and B are two different monomers, is called a ______ copolymer.

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in Chemistry – Class 12 by (188k points)
The polymer of type [-AAAABBBAAAABBB-]n, where A and B are two different monomers, is called a ______ copolymer.

(a) alternating

(b) block

(c) graft

(d) random

I got this question in an interview for job.

This intriguing question comes from Types of Polymerisation Reactions in section Polymers of Chemistry – Class 12

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Best answer
The correct choice is (b) block

Best explanation: Bock copolymers are those in which blocks of each type of monomer alternate with each other. In this case, the block AAAA and block BBB are alternatively repeated after each other.

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