What are the causes for
Permanent hardness

What are the causes for Temporary hardness

What are the causes of acid rain ?

Describe any two methods that may be used to remove permanent hardness of water.

What are the causes of indigestion?

A : Permanent hardness of water is due to the presence of chlorine or sulphates of Ca or Mg. R : Permanent hardness is removed by boiling

What causes the temporary and permanent hardness of water ?

Give an equation for the removal of permanent hardness in water.

What do you understand by the hardness of water and what are the causes of hardness ?

Name the substances responsible for permanent hardness

The reagent which is not used for removing the permanent hardness of water is :