Presence of aromatics in __________________?
Correct answer: C. Petrol increases its octane number
- A. Diesel increases its cetane number
- B. Kerosene increases its smoke point
- C. Petrol increases its octane number
- D. All A., B. and C.
Explanation
Aromatics raise the octane number of petrol because their molecular structures resist knocking. In contrast, aromatics generally lower diesel cetane number and kerosene smoke point, so options a and b state the opposite effects.
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