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प्रश्न
What are the methods of removing hardness of water?
थोडक्यात उत्तर
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उत्तर
- Boiling – Temporary hardness is easily removed from water by boiling.
- Adding washing soda – Washing soda is used to remove the permanent hardness of the water.
- Ion-exchange – This converts hard water into soft water.
- Distillation – Temporary and permanent hardness both can be removed by the method of distillation.
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Removal of Hardness of Water
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 13: Water - Exercises [पृष्ठ १५४]
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संबंधित प्रश्न
Give two examples of hydrated substances.
What do you observe when Washing soda is exposed to air ?
Boiling removes the ................ hardness of water.
Explain with equation, what is noticed when permanent hard water is treated with Washing soda.
How will you distinguish between soft water and hard water?
Give balanced equation to show how temporary hardness enters into water.
Using given sample of temporary and permanent hard water, soft water, ordinary soap, detergent and washing soda how would you prove the advantage of detergent over soap.
Give two natural sources of hard water.
What is permanent hardness of water? How can it be removed?
Temporary hardness of water can be removed by
