What is the primary purpose of catalytic cracking in the petroleum industry?
Correct answer: C. To break down large hydrocarbon molecules into smaller, more valuable ones
- A. To remove sulfur from gasoline
- B. To increase the octane number of gasoline
- C. To break down large hydrocarbon molecules into smaller, more valuable ones
- D. To combine small hydrocarbon molecules into larger ones
Explanation
Catalytic cracking uses heat, pressure, and a catalyst to break large, less useful hydrocarbon chains from crude oil into smaller, more valuable molecules. This process is essential for increasing the supply of gasoline.
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Industrial chemistry applies chemical reactions and material properties to the manufacture of adhesives, dyes and polymers. Coverage includes addition and condensation polymerisation, thermoplastics and thermosetting polymers, the structural basis of colour in dyes, and how adhesive composition enables bonding between surfaces.
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