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प्रश्न
What are the advantages of hard water.
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उत्तर
Advantages of hard water:
Water free from dissolved salts has a very flat taste. The presence of salts in hard water makes it tasty. So, hard water is used in making beverages and wines.
Calcium and magnesium salts present in small amounts in hard water are essential for bone and teeth development.
Hard water checks the poisoning of water by lead pipes. When these pipes are used for carrying water, some lead salts dissolve in water to make it poisonous. Calcium sulphate present in hard water forms insoluble lead sulphate in the form of a layer inside the lead pipe and this checks lead poisoning.
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संबंधित प्रश्न
What is the effect on boiling point of water when pressure is increased?
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 ?
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Name the compound responsible for temporary hardness.
Name the compound responsible for permanent hardness of water.
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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.
