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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
Give reason for It is difficult to cook in hills compared to plain.
Name the compound responsible for permanent hardness of water.
Temporary hardness of water can be removed by
What do you understand by
Soft water
Explain with equation, what is noticed when permanent hard water is treated with Washing soda.
Differentiate between Hard & soft water with suitable examples.
Give balanced equation to show how temporary hardness in water can be removed by boiling.
Using given sample of temporary and permanent hard water, soft water, ordinary soap, detergent and washing soda how would you distinguish between hard and soft water?
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.
