Table 1 shows the percentage of different fractions in crude oil samples taken from three different oil fields.
| Fraction | Boiling point range (°C) | Percentage in Field Alpha (%) | Percentage in Field Beta (%) | Percentage in Field Gamma (%) |
|---|---|---|---|---|
| Refinery gases | < 20 | 12 | 4 | 1 |
| Petrol (gasoline) | 20–150 | 28 | 12 | 5 |
| Kerosene | 150–220 | 20 | 15 | 10 |
| Diesel | 220–300 | 18 | 22 | 14 |
| Heavy fuel oil | 300–350 | 15 | 25 | 30 |
| Bitumen | > 350 | 7 | 22 | 40 |
State which oil field produces a crude oil containing the highest percentage of high boiling point fractions (heavy fuel oil and bitumen).
Practise Edexcel GCSE Chemistry Fuels with exam-style questions for Foundation and Higher tier. 105 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
