MCQOPTIONS
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| 1. |
To obtain a 100 Kg of 40 % N2 solution, how much nitrogen must be added to a 20% nitrogen solution? |
| A. | 10 Kg |
| B. | 25 Kg |
| C. | 50 Kg |
| D. | 75 Kg |
| Answer» C. 50 Kg | |