Advertisements
Advertisements
प्रश्न
Define the Hard water.
Advertisements
उत्तर
Water obtained from various sources does not easily form a lather with soap, rather it forms a white sticky scum or a precipitate. This water is called hard water.
APPEARS IN
संबंधित प्रश्न
What is the effect on boiling point of water when pressure is increased?
Give two examples for Efflorescent substance.
Suggest one method for the removal along with the reaction for temporary hardness.
Temporary hardness of water can be removed by
Give reason for the following:
Washing soda can be used to remove both temporary and permanent hardness in 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?
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 _____.
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?
