Raw Kerosene has a smoke point of 15 mm. After it is subjected to dearomatization by liquid SO2 extraction (Edeleanu process), its smoke point may become _______________________ mm?
Correct answer: C. 25
- A. 5
- B. 10
- C. 25
- D. 100
Explanation
Aromatic hydrocarbons burn with a smoky flame, so removing them by Edeleanu liquid-SO2 extraction raises kerosene's smoke point. A rise from 15 to about 25 mm is the plausible listed result; 100 mm is unrealistically large for this treatment.
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