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| Q. |
The calorific value of coal gas is expected to be around |
| A. | 1500 kcal/m3 |
| B. | 500 kcal/m3 |
| C. | 2500 kcal/m3 |
| D. | 7500 kcal/m3 |
| E. | 5000 kcal/m3 |
| Answer» D. 7500 kcal/m3 | |
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