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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
What is the effect on boiling point of water when impurity is added.
Give two examples of hydrated substances.
What do you observe when Washing soda is exposed to air ?
Define the Soft water.
Define the Hard water.
Name the compound responsible for temporary hardness.
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What are the advantages of hard water.
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