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प्रश्न
Boiling removes the ................ hardness of water.
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उत्तर
Boiling removes the temporary hardness of water
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संबंधित प्रश्न
Give two examples for Efflorescent substance.
What do you observe when Washing soda is exposed to air ?
Define the Soft water.
Suggest one method for the removal along with the reaction for permanent hardness of water.
What are the advantages of hard water.
Explain with equation, what is noticed when permanent hard water is treated with Washing soda.
Give balanced equations to show how permanent hardness in water can be removed by addition of washing soda.
Give reason for the following:
Hardness in temporary water can be removed by boiling, but hardness in permanent hard water cannot.
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.
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.
