Advertisements
Advertisements
प्रश्न
How will you distinguish between soft water and hard water?
Advertisements
उत्तर
Hard water... is water that contains an appreciable quantity of dissolved minerals (like calcium and magnesium). Soft water is treated water in which the only ion is sodium. As rainwater falls, it is naturally soft. On the other hand, soft water tastes salty and is sometimes not suitable for drinking.
APPEARS IN
संबंधित प्रश्न
Suggest one method for the removal along with the reaction for permanent hardness of water.
Name three water borne diseases.
Differentiate between Temporary & permanent hard water with suitable examples.
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.
Fill in the blank:
Hard and soft water can be distinguished using _____.
Give two natural sources of hard water.
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.
Permanent hardness of water is due to the presence of _______.
What are the methods of removing hardness of water?
