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प्रश्न
Explain the meaning of the terms – hard water & soft water.
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उत्तर
- Hard Water: “Water that does not lather readily with ordinary soap and hence wastes soap” is called hard water.
- Soft Water: “Water that lather readily with ordinary soap and—hence, soap is not wasted” is called soft water.
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संबंधित प्रश्न
Define the Hard water.
Name the compound responsible for permanent hardness of water.
What are the advantages of soft water.
Differentiate between Hard & soft water with suitable examples.
Differentiate between Temporary & permanent hard 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.
Give two natural sources of hard water.
Permanent hardness of water is due to the presence of _______.
Temporary hardness of water can be removed by
