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प्रश्न
Give reason for the following:
Washing soda can be used to remove both temporary and permanent hardness in water.
उत्तर
Washing soda Na2CO3 exchanges ions [SO4]– and Cl– and do not make water hard.
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संबंधित प्रश्न
Give reason for It is difficult to cook in hills compared to plain.
Give two examples for Efflorescent substance.
Suggest one method for the removal along with the reaction for permanent hardness of water.
What do you understand by
Soft water
What do you understand by
Hard water
What are the advantages of soft water.
Differentiate between Temporary & permanent hard water with suitable examples.
Give balanced equation to show how temporary hardness in water can be removed by boiling.
Two samples of water are placed in a beaker individually. State how you will determine experimentally which of the two samples contains permanent hard water.
What are the methods of removing hardness of water?
