Name one compound in each case which can cause
temporary hardness and permanent hardness in water.

What causes the temporary and permanent hardness of water?

Distinguish between : Temporary and permanent hardness of water.

Temporary hardness of water is due to the presence of

What are cation exchange resins? What is their role in removing permanent hardness of water?

Write the name and formula of four minerals which cause permanent hardness of water.

Show by equations, how both temporary and permanent hard water react with soap.

Name one material which is suitable for making a permanent magnet?

Permanent hardness of water can be removed only by chemical methods. Write the name of any one salt responsible for the permanent hardness of water.