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प्रश्न
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.
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उत्तर
On adding ordinary soap in the sample and shaking if this water gives lather easily it is soft water otherwise it is hard water.
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संबंधित प्रश्न
Define the Hard water.
Temporary hardness of water can be removed by
What are the advantages of soft water.
Differentiate between Temporary & permanent hard water with suitable examples.
Give balanced equation to show how temporary hardness enters into water.
Give reason for the following:
Hardness in temporary water can be removed by boiling, but hardness in permanent hard water cannot.
Give reason for the following:
Washing soda can be used to remove both temporary and permanent hardness in water.
Explain the meaning of the terms – hard water & soft water.
Give two natural sources of hard water.
Name the process by which temporary hardness is easily removed from the water.
