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प्रश्न
Name the compound responsible for permanent hardness of water.
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उत्तर
Permanent hard water— Water, which has sulphates and chlorides of calcium and magnesium dissolved in it, is called permanent hard water. This hardness cannot be removed by boiling.
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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.
Give balanced equation to show how temporary hardness in water can be removed by boiling.
Explain the meaning of the terms – hard water & soft water.
State the causes of hardness in water.
A sample of water is given in a trough. State how would you prove experimentally whether the given sample is hard water or soft 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.
What are the methods of removing hardness of water?
What is permanent hardness of water? How can it be removed?
