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प्रश्न
Give balanced equation to show how temporary hardness in water can be removed by boiling.
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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 pressure is increased?
What is the effect on boiling point of water when impurity is added.
Give two examples of hydrated substances.
Define the Soft water.
Define the Hard water.
Temporary hardness of water can be removed by
What do you understand by
Soft water
What do you understand by
Hard water
What are the advantages of soft water.
What are the advantages of hard water.
State the disadvantages of using hard water.
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?
Fill in the blank:
Hard and soft water can be distinguished using _____.
Permanent hardness of water is due to the presence of _______.
What are the methods of removing hardness of water?
Name the process by which temporary hardness is easily removed from the water.
