B) Sulphonamides
C) Lime
D) Nitrates
Related MCQs:
- Permanent hardness of water can be removed by adding?
- Which element is used to remove the permanent hardness of water?
- Less than one percent of Earth’s water is fresh water but the oceans contain ….. percent of the earth’s water?
- In a mixture of 60 liters, the ratio of milk and water is 2:1. What amount of water must be added to make the ratio of milk and water as 1:2?