Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
Boil each sample of water separately and then two each sample add ordinary soap, the sample that lathers are temporary hard water and the sample which does not lather is permanent hard water.
APPEARS IN
संबंधित प्रश्न
What is the effect on boiling point of water when pressure is increased?
Give reason for It is difficult to cook in hills compared to plain.
What do you observe when Washing soda is exposed to air ?
Suggest one method for the removal along with the reaction for temporary hardness.
Boiling removes the ................ hardness of water.
What do you understand by
Hard water
What are the advantages of hard water.
Give balanced equations to show how permanent hardness in water can be removed by addition of washing soda.
Explain the meaning of the terms – hard water & soft water.
Temporary hardness of water can be removed by
