MCQOPTIONS
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| 1. |
__Pick out the false statement pertaining to water treatment.__ |
| A. | Aeration of water is effective in CO‚ÇÇ removal |
| B. | The zeolite water softening process reduces the hardness of water by not more than 50% |
| C. | Sodium sulphate or sodium carbonate do not cause hardness in water |
| D. | Water with pH value less than 7, is acidic |
| Answer» C. Sodium sulphate or sodium carbonate do not cause hardness in water | |