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प्रश्न
Give two examples of hydrated substances.
उत्तर
- Washing soda (Na2CO3.10H2O)
- Gypsum (CaSO4.2H2O)
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संबंधित प्रश्न
What do you observe when Washing soda is exposed to air ?
Suggest one method for the removal along with the reaction for temporary hardness.
What are the advantages of hard 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 _____.
Give two natural sources of hard water.
A sample of water is given in a trough. State how would you prove experimentally whether the given sample is hard water or soft water.
What are the methods of removing hardness of water?
What is permanent hardness of water? How can it be removed?
Name the process by which temporary hardness is easily removed from the water.
