Q. A hard water may contain (Solved)
1. Calcium carbonate
2. Magnesium sulphate
3. Magnesium bicarbonate
4. Any of the above
5. None of the above
- d. Any of the above
1. Calcium carbonate
2. Magnesium sulphate
3. Magnesium bicarbonate
4. Any of the above
5. None of the above