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प्रश्न
Give two examples of hydrated substances.
लघु उत्तर
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उत्तर
- Washing soda (Na2CO3.10H2O)
- Gypsum (CaSO4.2H2O)
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Removal of Hardness of Water
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संबंधित प्रश्न
Define the Soft water.
What do you understand by
Hard water
What are the advantages of hard water.
State the disadvantages of using hard water.
Differentiate between Hard & soft water with suitable examples.
Differentiate between Temporary & permanent hard water with suitable examples.
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.
Two samples of water are placed in a beaker individually. State how you will determine experimentally which of the two samples contains permanent hard water.
Temporary hardness of water can be removed by ________ of water.
