In which of the following method of the removal of hardness, Ca+2 and Mg+2 are not separated from ample of hard water?(1) By boiling of temporary hard water(2) Addition of sodium carbonate(3) Using sodium hexa meta phosphate(4) Synethetic resins and zeolite method

In which of the following method of the removal of hardness, Ca+2 and

1.	In which of the following method of the removal of hardness, Ca+2 and Mg+2 are not separated from ample of hard water?(1) By boiling of temporary hard water(2) Addition of sodium carbonate(3) Using sodium hexa meta phosphate(4) Synethetic resins and zeolite method
Answer» In which of the following method of the removal of hardness, Ca+2 and Mg+2 are not separated from ample of hard water?(1) By boiling of temporary hard water(2) Addition of sodium carbonate(3) Using sodium hexa meta phosphate(4) Synethetic resins and zeolite method