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प्रश्न
How will you distinguish between soft water and hard water?
उत्तर
Hard water... is water that contains an appreciable quantity of dissolved minerals (like calcium and magnesium). Soft water is treated water in which the only ion is sodium. As rainwater falls, it is naturally soft. On the other hand, soft water tastes salty and is sometimes not suitable for drinking.
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संबंधित प्रश्न
Name three water borne diseases.
State the disadvantages of using hard water.
Give balanced equation to show how temporary hardness enters into 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.
Give reason for the following:
Washing soda can be used to remove both temporary and permanent hardness in water.
Fill in the blank:
Hard and soft water can be distinguished using _____.
Give two natural sources of hard water.
What is the reason for the hardness of water?
Temporary hardness of water can be removed by
