MCQOPTIONS
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MCQOPTIONS
| 1. |
As per Is 10500:1991, acceptable limit of calium in standard drinking water is |
| A. | 30mg/1 |
| B. | 45mg/1 |
| C. | 75mg/1 |
| D. | 100mg/1 |
| Answer» D. 100mg/1 | |