MCQOPTIONS
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MCQOPTIONS
| 1. |
The temperature in the calcium carbide furnace is _______________ °C ? |
| A. | 200-300 |
| B. | 700-850 |
| C. | 2000-2200 |
| D. | 4000-4500 |
| Answer» D. 4000-4500 | |