MCQOPTIONS
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| 1. |
Which of the following statement is incorrect for mixing water? |
| A. | Suspended particles of clay and slit < .02% |
| B. | The quality of CaCl2 is restricted to 1.5% |
| C. | The pH value of water should be between 6-8 |
| D. | Free vegetable oil is beneficial |
| Answer» E. | |