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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
Give two examples for Efflorescent substance.
State the disadvantages of using hard water.
Explain with equation, what is noticed when permanent hard water is treated with Washing soda.
Differentiate between Temporary & permanent hard water with suitable examples.
Give balanced equation to show how temporary hardness in water can be removed by boiling.
Fill in the blank:
Hard and soft water can be distinguished using _____.
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.
Permanent hardness of water is due to the presence of _______.
Temporary hardness of water can be removed by ________ of water.
What is permanent hardness of water? How can it be removed?
