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प्रश्न
What are the causes of temporary hardness and permanent hardness of water?
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उत्तर
- Temporary hardness is due to the presence of carbonate and bicarbonate salts of calcium and magnesium.
- Permanent hardness is due to the presence of chloride and sulphate salts of calcium and magnesium.
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संबंधित प्रश्न
Discuss the principle and method of softening of hard water by synthetic ion-exchange resins.
What are the causes for:
Temporary hardness
What are the causes for
Permanent hardness
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?
Using given sample of temporary and permanent hard water, soft water, ordinary soap, detergent and washing soda how would you remove temporary hardness and permanent hardness from water using a chemical compound?
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 |
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| Boiling | Ozonisation |
| Sterilization | Water |
| Sewage | Stomach ailments |
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Which water is hard?
