Which of the following is not a natural polymer ?
Correct answer: D. Polyurethane
- A. Nucleic acids e.g. RNA and DNA
- B. Polysaccharides
- C. Polyisoprene
- D. Polyurethane
Explanation
Polyurethane is a synthetic polymer made by reacting polyisocyanates with polyols. Nucleic acids, polysaccharides, and natural polyisoprene such as rubber occur naturally.
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