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Unilorin Post-UTME Chemistry 2022 (Model questions) Question 11

Question 11

Polymers

The monomer of natural rubber is

  1. A.2-methylbuta- 1,3-diene
  2. B.1-buten-3-yne
  3. C.buta-1,3-diene
  4. D.2-chlorobuta-1,3-diene
Show the answer and explanation

Answer: A (2-methylbuta- 1,3-diene)

Explanation

Natural rubber is a polymer of isoprene, 2-methylbuta-1,3-diene. 2-chlorobuta-1,3-diene is the monomer of neoprene.