Which of the following gasoline (unleaded) has the least octane number ?
Correct answer: B. Straight run gasoline
- A. Catalytically cracked gasoline
- B. Straight run gasoline
- C. Catalytically reformed gasoline
- D. Polymer gasoline
Explanation
Straight-run gasoline comes directly from crude distillation and contains fewer high-octane branched and aromatic components than reformed, cracked, or polymer gasoline. It therefore generally has the lowest octane number among these choices.
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