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प्रश्न
Define the Hard water.
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उत्तर
Water obtained from various sources does not easily form a lather with soap, rather it forms a white sticky scum or a precipitate. This water is called hard water.
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संबंधित प्रश्न
Define the Soft water.
Boiling removes the ................ hardness of water.
State the disadvantages of using hard water.
Explain the permutit method for softening hard water.
Give reason for the following:
Washing soda can be used to remove both temporary and permanent 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.
Write a note on ion exchange.
What is the reason for the hardness of water?
Temporary hardness of water can be removed by
