a) What are the causes for
i) Temporary hardness ii) Permanent hardness
b) Why does the hardness of water render it unfit for use in a i) boiler ii) for washing purposes.
What causes the temporary and permanent hardness of water?
What are the causes for
(a) Temporary hardness
(b) Permanent hardness
Name the substances in each case which causes:
(i) Temporary hardness in water
(ii) Permanent hardness in water