Which of the following do not cause hardness of water ?
* Temporary hardness is a type of water hardness caused by the presence of dissolved bicarbonate minerals (calcium bicarbonate and magnesium bicarbonate). * Permanent hardness is caused by dissolved calcium sulfate (which is not removed by boiling ref : park 21st ed
Calcium carbonate
Calcium sulphate
Calcium bicarbonate
Magnesium bicarbonate
All India exam