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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
Name the compound responsible for permanent hardness of water.
Suggest one method for the removal along with the reaction for permanent hardness of water.
Name three water borne diseases.
What do you understand by
Hard water
Explain the permutit method for softening hard water.
Give reason for the following:
Hardness in temporary water can be removed by boiling, but hardness in permanent hard water cannot.
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.
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.
What are the methods of removing hardness of water?
Temporary hardness of water can be removed by
