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JAMB Chemistry 2001 Question 38

Question 38

Polymers

During the vulcanization of rubber, sulphur is added to

  1. A.break down rubber polymer
  2. B.lengthen the chain of rubber
  3. C.bind rubber molecules together
  4. D.act as a catalyst
Show the answer and explanation

Answer: C (bind rubber molecules together)

Explanation

Sulphur forms cross-links between neighbouring rubber chains, binding them together and making the rubber tougher and more elastic.