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प्रश्न
Name three water borne diseases.
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उत्तर
(1) Cholera (2) Typhoid (3) Hepatitis
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संबंधित प्रश्न
Give two examples of hydrated substances.
Define the Hard water.
Boiling removes the ................ hardness of water.
Explain with equation, what is noticed when permanent hard water is treated with Washing soda.
Give balanced equation to show how temporary hardness in water can be removed by boiling.
Give reason for the following:
Washing soda can be used to remove both temporary and permanent hardness in water.
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?
Fill in the blank:
Hard and soft water can be distinguished using _____.
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.
