What are the factors that cause hardness of water? How many types of hardness are there?
Answers
Answered by
1
the presence of magnesium and calcium in the water
Answered by
4
Permanent hardness is caused by dissolved chloride, sulphate, nitrates of Calcium and magnesium which are not removed by boiling.
There are three types of Hardness tests :-
1. Rockwell hardness test
2. Brinell hardness
3. Vickers hardness
There are three types of Hardness tests :-
1. Rockwell hardness test
2. Brinell hardness
3. Vickers hardness
Similar questions