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प्रश्न
Give two natural sources of hard water.
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उत्तर
Two natural sources of hard water :
- Water from springs
- River water.
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संबंधित प्रश्न
What do you observe when Washing soda is exposed to air ?
Name the compound responsible for temporary hardness.
Suggest one method for the removal along with the reaction for temporary hardness.
Explain the permutit method for softening hard water.
Differentiate between Hard & soft water with suitable examples.
Give reason for the following:
Hardness in temporary water can be removed by boiling, but hardness in permanent hard water cannot.
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.
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.
Write a note on ion exchange.
What is the reason for the hardness of water?
