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प्रश्न
Define the Hard water.
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
What is the effect on boiling point of water when impurity is added.
Name the compound responsible for permanent hardness of water.
Boiling removes the ................ hardness of water.
What are the advantages of soft water.
Explain the permutit method for softening hard water.
Give balanced equations to show how permanent hardness in water can be removed by addition of washing soda.
Using given sample of temporary and permanent hard water, soft water, ordinary soap, detergent and washing soda how would you distinguish between hard and soft water?
Fill in the blank:
Hard and soft water can be distinguished using _____.
Explain the meaning of the terms – hard water & soft water.
Permanent hardness of water is due to the presence of _______.
