1.

The method used to remove temporaty hardness of water is :

Answer»

SYNTHETIC RESINS method
Calgon.s method
Clark.s method
Ion-exchange method

Solution :Clark.s method is used to remove temporary hardness of water, in which bicarbonates of calcium and magnesium are reacted with SLAKED LINE `Ca(OH)_2`
`Ca(HCO_3)_2 + Ca(OH)_2 to 2CaCO_3 + 2H_2O`


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