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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 reason for It is difficult to cook in hills compared to plain.
Give two examples of hydrated substances.
Name the compound responsible for temporary hardness.
Name the compound responsible for permanent hardness of water.
Suggest one method for the removal along with the reaction for temporary hardness.
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.
How will you distinguish between soft water and hard 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?
State the causes of 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.
Temporary hardness of water can be removed by ________ of water.
What is permanent hardness of water? How can it be removed?
What is the reason for the hardness of water?
