MCQOPTIONS
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| 1. |
Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator? |
| A. | Cresylic acid |
| B. | Copper sulphate |
| C. | Calcium carbonate |
| D. | Sodium carbonate |
| Answer» C. Calcium carbonate | |