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प्रश्न
Name the compound responsible for permanent hardness of water.
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
Define the Soft water.
Name the compound responsible for temporary hardness.
Name three water borne diseases.
State the disadvantages of using hard water.
How will you distinguish between soft water and hard water?
Give balanced equation to show how temporary hardness enters into water.
Give reason for the following:
Washing soda can be used to remove both temporary and permanent hardness in water.
Give two natural sources of hard water.
Permanent hardness of water is due to the presence of _______.
What are the methods of removing hardness of water?
