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प्रश्न
Explain with equation, what is noticed when permanent hard water is treated with Washing soda.
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उत्तर
When washing soda or soda ash is added to hard water, the corresponding insoluble carbonates settle down and can be removed by filtration.
\[\ce{Ca(HCO3)2 + Na2CO3 ->[boil] CaCO3 \downarrow + 2NaHCO3}\]
\[\ce{Mg(HCO3)2 + Na2CO3 ->[boil] MgCO3 \downarrow + 2NaHCO3}\]
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संबंधित प्रश्न
Define the Hard water.
Suggest one method for the removal along with the reaction for temporary hardness.
What do you understand by
Hard water
State the disadvantages of using hard water.
How will you distinguish between soft water and hard water?
Give reason for the following:
Washing soda can be used to remove both temporary and permanent hardness in water.
State the causes of hardness in water.
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
