Which of the following has the highest flash point of all ?
Correct answer: D. Furnace oil
- A. Diesel
- B. Kerosene
- C. Petrol
- D. Furnace oil
Explanation
Furnace oil contains much heavier, less volatile hydrocarbons than diesel, kerosene, or petrol, so it requires the highest temperature to produce ignitable vapour. Higher flash point therefore follows increasing fuel heaviness.
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