Hard water does not give ready leather with soap.
What are the two types of hardness?

Hard water does not give ready leather with soap. What is the reason for hardness?

Hard water does not give ready leather with soap. Suggest one method to remove hardness.

Certain samples of water do no produce easy lather with soap. Which are two types of of this condition?

Soap does not give lather with hard water. Why?

Certain samples of water do no produce easy lather with soap. What are the problems caused by this condition of water?

A sample of river water does not give lather with soap easily when it is cold, but on heating gives ready lather with soap. Why?

Certain samples of water do no produce easy lather with soap. What is this condition of water called?

What are the disadvantages of hard water?

Certain samples of water do no produce easy lather with soap. Suggest two methods to change this condition of water

A sample of cold river water does not easily give lather with soap, but on boiling it does. In some cases the water does not give ready lather even if it is boiled. Why?