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JAMB Chemistry 1989 Question 47

Question 47

Polymers

Which of the following is NOT a monomer?

  1. A.C6H6 (benzene)
  2. B.CH2 = CH2
  3. C.CH2 = CHCl
  4. D.C6H5CH = CH2 (phenylethene)
Show the answer and explanation

Answer: A (C6H6 (benzene))

Explanation

Ethene, chloroethene and phenylethene (styrene) have a C=C double bond and polymerise. Benzene's stable ring does not undergo addition polymerisation.