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JAMB Chemistry 1988 Question 46

Question 46

Hydrocarbons

Alkanes → smaller alkanes + alkenes + hydrogen (400 – 700 °C, catalyst). The above reaction is known as

  1. A.photolysis
  2. B.cracking
  3. C.isomerization
  4. D.reforming
Show the answer and explanation

Answer: B (cracking)

Explanation

Breaking large alkane molecules into smaller alkanes, alkenes and hydrogen with heat and a catalyst is cracking.