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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?
Define the Hard water.
Name the compound responsible for permanent hardness of water.
How will you distinguish between soft water and hard water?
Give balanced equations to show how permanent hardness in water can be removed by addition of washing soda.
Give reason for the following:
Hardness in temporary water can be removed by boiling, but hardness in permanent hard water cannot.
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.
Temporary hardness of water can be removed by ________ of water.
What is permanent hardness of water? How can it be removed?
