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प्रश्न
What do you observe when Washing soda is exposed to air ?
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उत्तर
Washing soda (Na2CO3.10H2O) is a white crystalline substance and on exposure to air it gets changed to white powder.
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Removal of Hardness of Water
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संबंधित प्रश्न
What is the effect on boiling point of water when pressure is increased?
Give two examples of hydrated substances.
Suggest one method for the removal along with the reaction for temporary hardness.
Boiling removes the ................ hardness of water.
How will you distinguish between soft water and hard water?
Differentiate between Temporary & permanent hard water with suitable examples.
Temporary hardness of water can be removed by ________ of water.
Write a note on ion exchange.
What is the reason for the hardness of water?
Temporary hardness of water can be removed by
