Which of the following is the chemical name of natural rubber?
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A.
Chloroprene
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B.
Acrylonitrile-butadiene copolymer
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C.
Styrene-butadiene copolymer
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D.
Polyisoprene
Correct Answer:
D. Polyisoprene
Explanation:
The chemical name for natural rubber is polyisoprene, specifically cis-1,4-polyisoprene. It is a natural polymer formed through the polymerization of isoprene monomers (2-methyl-1,3-butadiene). While other options like chloroprene and acrylonitrile-butadiene are used to create synthetic rubbers such as neoprene and nitrile rubber, polyisoprene is the primary constituent that gives natural rubber its characteristic elasticity and structure.
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