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JAMB Chemistry 2009 Question 41

Question 41

Petroleum and Coal

A cracking process in petroleum refining can be represented by

  1. A.heptane to heptene
  2. B.heptane to 3-methylhexane
  3. C.heptane to propene and butane
  4. D.heptane to 2,3,3-trimethybutane
Show the answer and explanation

Answer: C (heptane to propene and butane)

Explanation

Cracking breaks a large molecule into smaller ones: C7H16 → C3H6 + C4H10.