Advertisements
Advertisements
Question
Explain the meaning of the terms – hard water & soft water.
Solution
- Hard Water: “Water that does not lather readily with ordinary soap and hence wastes soap” is called hard water.
- Soft Water: “Water that lather readily with ordinary soap and—hence, soap is not wasted” is called soft water.
APPEARS IN
RELATED QUESTIONS
Give two examples of hydrated substances.
Suggest one method for the removal along with the reaction for temporary hardness.
Suggest one method for the removal along with the reaction for permanent hardness of water.
Boiling removes the ................ hardness of water.
How will you distinguish between soft water and hard water?
Give balanced equation to show how temporary hardness enters into 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?
State the causes of hardness in water.
Permanent hardness of water is due to the presence of _______.
What is permanent hardness of water? How can it be removed?
