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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
Give two examples of hydrated substances.
Define the Soft water.
Define the Hard water.
Suggest one method for the removal along with the reaction for permanent hardness of water.
What do you understand by
Hard water
What are the advantages of soft water.
What are the advantages of hard water.
Explain the permutit method for softening hard water.
Differentiate between Hard & soft water with suitable examples.
Give balanced equations to show how permanent hardness in water can be removed by addition of washing soda.
Give reason for the following:
Washing soda can be used to remove both temporary and permanent hardness in water.
Give two natural sources of hard water.
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.
Permanent hardness of water is due to the presence of _______.
Temporary hardness of water can be removed by ________ of water.
Name the process by which temporary hardness is easily removed from the water.
Temporary hardness of water can be removed by
