Advertisements
Advertisements
प्रश्न
Give balanced equation to show how temporary hardness in water can be removed by boiling.
Advertisements
उत्तर
To remove temporary hardness by boiling: Bicarbonate changes to insoluble carbonate and water becomes soft.
\[\ce{\underset{\text{calcium bicarbonate in hard water}}{Ca[HCO3]2}->[Boil]\underset{\text{Cal.carbonate}}{CaCO3}↓ + CO2 +\underset{\text{water}}{H2O}}\]
\[\ce{\underset{\text{Magnesium bicarbonate}}{Mg[HCO3]2}->[Boil]\underset{\text{Magnesium bicarbonate}}{MgCO3↓} + CO2 + H2O}\]
संबंधित प्रश्न
What is the effect on boiling point of water when impurity is added.
Give reason for It is difficult to cook in hills compared to plain.
Name the compound responsible for temporary hardness.
Suggest one method for the removal along with the reaction for temporary hardness.
Boiling removes the ................ hardness of water.
What do you understand by
Hard water
How will you distinguish between soft water and hard water?
Differentiate between Temporary & permanent hard water with suitable examples.
Give balanced equation to show how temporary hardness enters into water.
Give reason for the following:
Washing soda can be used to remove both temporary and permanent hardness in water.
Using given sample of temporary and permanent hard water, soft water, ordinary soap, detergent and washing soda how would you distinguish between hard and soft water?
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.
Fill in the blank:
Hard and soft water can be distinguished using _____.
Two samples of water are placed in a beaker individually. State how you will determine experimentally which of the two samples contains permanent hard water.
Temporary hardness of water can be removed by ________ of water.
What are the methods of removing hardness of water?
What is the reason for the hardness of water?
