Molecular weight of petrol may be about ____________________?
Correct answer: B. 100-130
- A. 40-60
- B. 100-130
- C. 250-300
- D. 350-400
Explanation
Petrol is a relatively light hydrocarbon mixture, typically covering roughly C₅ to C₁₂ and having an average molecular weight near 100 to 130. The higher ranges correspond to heavier petroleum fractions.
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