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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
Give reason for It is difficult to cook in hills compared to plain.
What do you understand by
Soft water
What are the advantages of soft water.
Explain the permutit method for softening hard water.
Give balanced equation to show how temporary hardness in water can be removed by boiling.
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.
Temporary hardness of water can be removed by ________ of water.
Name the process by which temporary hardness is easily removed from the water.
Temporary hardness of water can be removed by
