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प्रश्न
What do you understand by
Hard water
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उत्तर
Water is said to be hard when it does not readily form lather with soap.
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संबंधित प्रश्न
Give reason for It is difficult to cook in hills compared to plain.
Define the Soft water.
Define the Hard water.
State the disadvantages of using 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.
What are the methods of removing hardness of water?
What is permanent hardness of water? How can it be removed?
