Main constituents of natural rubber is____________________?
Correct answer: B. Polyisoprene
- A. Polystyrene
- B. Polyisoprene
- C. Polybutadiene
- D. Polychlorophrene
Explanation
Natural rubber is principally cis-1,4-polyisoprene, formed by polymerization of isoprene units. The other choices are synthetic polymers or polymers based on different monomers.
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