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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
What is the effect on boiling point of water when pressure is increased?
Give reason for It is difficult to cook in hills compared to plain.
What do you understand by
Soft 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.
Fill in the blank:
Hard and soft water can be distinguished using _____.
State the causes of hardness in water.
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.
What is permanent hardness of water? How can it be removed?
Name the process by which temporary hardness is easily removed from the water.
