MCQOPTIONS
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| 1. |
Temporary hardness in water is caused by the presence of |
| A. | Bicarbonates of Ca and Mg |
| B. | Sulphates of Ca and Mg |
| C. | Chlorides of Ca and Mg |
| D. | Nitrates of Ca and Mg. |
| Answer» B. Sulphates of Ca and Mg | |