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प्रश्न
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.
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उत्तर
Boil each sample of water separately and then two each sample add ordinary soap, the sample that lathers are temporary hard water and the sample which does not lather is permanent hard water.
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संबंधित प्रश्न
Give two examples for Efflorescent substance.
Define the Hard water.
Name the compound responsible for temporary hardness.
What are the advantages of hard water.
Differentiate between Temporary & permanent hard water with suitable examples.
Give balanced equation to show how temporary hardness in water can be removed by boiling.
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.
Fill in the blank:
Hard and soft water can be distinguished using _____.
What is the reason for the hardness of water?
Temporary hardness of water can be removed by
