Permanent hardness of water cannot be removed by boiling. Why?

Assertion : Permanent hardness of water can be removed by using washing soda. Reason : Washing soda reacts with soluble calcium and magnesium chlorides and sulphates in hard water to form insoluble carbonates.

By adding which of the following process, permanent hardness of water can be removed.

Give balanced equations to show how - Permanent hardness in water can be removed by addition of washing soda

Give balanced equations to show how - (b) Temporary hardness in water can be removed by boiling

Permanent hardness can be removed by boiling water with washing soda.

Permanent hardness can be removed by adding

Permanent hardness of water is due to the presence of

Only temporary hardness of water is removed by

Give reasons for the following: Hardness in temporary water can be removed by boiling, but hardness in permanent hard water cannot.

Assertion (A) Permanent hardness of water is removed by treatment with washing soda. Reson (R) Washing soda reacts with soluble magnesium and calcium sulphate to from insolube carbonates.