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प्रश्न
Suggest one method for the removal along with the reaction for temporary hardness.
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उत्तर
Temporary hardness—
By Boiling— This method helps to remove only the temporary hardness of water. When temporary hard water is boiled, the bicarbonates of calcium and magnesium break up to form their insoluble carbonates.
These can be filtered out so that water becomes soft
\[\ce{\underset{\text{(soluble calcium bicarbonate}}{Ca(HCO3)2}->[boild]\underset{\text{(ppt)(calcium carbonate)}}{CaCO3}+\underset{\text{(water)}}{{H2O}} + \underset{\text{(carbon dioxide)}}{CO2(g)}}\]
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संबंधित प्रश्न
What do you observe when Washing soda is exposed to air ?
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.
Give balanced equation to show how temporary hardness enters into water.
Give balanced equations to show how permanent hardness in water can be removed by addition of washing soda.
Fill in the blank:
Hard and soft water can be distinguished using _____.
A sample of water is given in a trough. State how would you prove experimentally whether the given sample is hard water or soft water.
Temporary hardness of water can be removed by ________ of water.
