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NEET 2020
Exam
NEET
Year
2020
Subject
Chemistry
Chapter
Polymers

NEET 2020 · Chemistry · Polymers

Which of the following is a natural polymer?

Which of the following is a natural polymer?

Options

  1. Apoly (Butadiene-styrene)
  2. Bpolybutadiene
  3. Cpoly (Butadiene-acrylonitrile)
  4. Dcis-1, 4-polyisoprene

Correct answer

D. cis-1, 4-polyisoprene

Step-by-step solution

Natural rubber is a polymer of isoprene. The chemical name of isoprene is 2−2 -methyl-1,3−1, 3 -butadiene and its chemical formula is CH2=C(CH3)−CH=CH2{CH}_{2} = C ( {CH}_{3} ) - CH = {CH}_{2}. Isoprene is a liquid that is colourless and volatile. As we can see from the formula it has two double bonds.
So answer is cis-1,41, 4-polyisoprene
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