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प्रश्न
Give a reason for the following.
Hard water is not good for washing utensils.
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उत्तर
Reason:
Hard water damages the utensils and containers in which it is stored and forms a hard layer.
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संबंधित प्रश्न
What do you understand by
Temporary hard water
What do you understand by
Permanent hard water
Explain with equation, what is noticed when permanent hard water is treated with
Slaked time
How will you distinguish between temporary hard water and permanent hard water?
Using given sample of temporary and permanent hard water, soft water, ordinary soap, detergent and washing soda how would you distinguish between temporary hard water and permanent hard water?
State what are synthetic detergents. Explain experimentally how you will determine the advantage of synthetic detergents over soap using a sample of hard water.
Soap lathers well in hard water.
Match the following.
| Universal solvent | Water pollutant |
| Hard water | Kills germs |
| Boiling | Ozonisation |
| Sterilization | Water |
| Sewage | Stomach ailments |
What are the causes of temporary hardness and permanent hardness of water?
1000 g aqueous solution of CaCO3 contains 10 g of calcium carbonate. Concentration of the solution is ______.
