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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 is the effect on boiling point of water when impurity is added.
Give reason for It is difficult to cook in hills compared to plain.
Define the Soft water.
Name the compound responsible for permanent hardness of water.
State the disadvantages of using hard water.
Explain with equation, what is noticed when permanent hard water is treated with Washing soda.
How will you distinguish between soft water and 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.
Fill in the blank:
Hard and soft water can be distinguished using _____.
