Petroleum Refining
Catalytic cracking of petroleum produces:
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About This Question
- Subject
- chemistry
- Chapter
- hydrocarbons
- Topic
- petroleum refining
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Lower alkanes and alkenes
Cracking (or Pyrolysis) is the process of breaking down high molecular weight hydrocarbons (long chains) into lower molecular weight hydrocarbons (shorter chains).
- Catalytic Cracking: Occurs at moderate temperatures in the presence of catalysts (like zeolites or silica-alumina).
- Products: It yields a mixture of lower alkanes (useful for gasoline/petrol) and alkenes (starting materials for the plastics industry).
- This process enhances the quantity and quality of fuel obtained from crude oil.
This easy difficulty chemistry question is from the chapter hydrocarbons, covering the topic of petroleum refining. It appeared in the 2025 exam.
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