Advertisements
Advertisements
प्रश्न
Give balanced equation to show how temporary hardness enters into water.
Advertisements
उत्तर
Temporary hardness: Enters in water when rain water containing CO2 falls on earth and combines with limestone [CaCO3] & magnesite [MgCO3] layers forming respective soluble bicarbonates.
\[\ce{CaCO3 + H2O + CO2 -> \underset{\text{Cal. bicarbonate}}{Ca[HCO3]2}}\]
\[\ce{MgCO3 + H2O + CO2 ->\underset{\text{Magnesium bicarbonate}}{Mg[HCO3]2}}\]
APPEARS IN
संबंधित प्रश्न
Give reason for It is difficult to cook in hills compared to plain.
Give two examples for Efflorescent substance.
Suggest one method for the removal along with the reaction for temporary hardness.
Suggest one method for the removal along with the reaction for permanent hardness of water.
Boiling removes the ................ hardness of water.
Temporary hardness of water can be removed by
Give reason for the following:
Hardness in temporary water can be removed by boiling, but hardness in permanent hard water cannot.
Using given sample of temporary and permanent hard water, soft water, ordinary soap, detergent and washing soda how would you prove the advantage of detergent over soap.
Name the process by which temporary hardness is easily removed from the water.
Temporary hardness of water can be removed by
