General Knowledge :: Chemistry
- Bleaching powder is used in drinking water as a/an
- The process of removing calcium and magnesium from hard water is known as
- Hard water and soft water can be distinguished by using
- Which method will be employed to test the hardness of water?
- Water cycle refers to
- Permanent hardness of water may be removed by addition of
- Acid rain is caused due to pollution of atmosphere by
- What are the components responsible for acid rain?
- Which gas emitted by power stations causes acid rain?