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Q.

Which of the following is an example of polyester?

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a

Neoprene

b

Butadiene-styrene copolymer

c

Melamine polymer

d

 Poly- β-hydroxybutyrate-co- β-hydroxy valerate 

answer is D.

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Detailed Solution

In PHBV, 3-hydroxybutanoic acid and 3-hydroxypentanoic acid, are joined by ester bonds Hence it is a Polyester.

PHBV=  Poly- β-hydroxybutyrate-co- β-hydroxy valerate 

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