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प्रश्न
What do you understand by
Hard water
उत्तर
Water is said to be hard when it does not readily form lather with soap.
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संबंधित प्रश्न
What is the effect on boiling point of water when pressure is increased?
Explain with equation, what is noticed when permanent hard water is treated with Washing soda.
Differentiate between Hard & soft water with suitable examples.
Give balanced equations to show how permanent hardness in water can be removed by addition of washing soda.
Give reason for the following:
Hardness in temporary water can be removed by boiling, but hardness in permanent hard water cannot.
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?
Using given sample of temporary and permanent hard water, soft water, ordinary soap, detergent and washing soda how would you prove the advantage of detergent over soap.
Explain the meaning of the terms – hard water & soft water.
Temporary hardness of water can be removed by ________ of water.
What is the reason for the hardness of water?
