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.

In the following quesitons a statement of Assertion (A) followed by a statement of reason (R ) is given. Choose the correct option out of the option given below each question. Assertion[A]: Permanent hardness of water is removed by treatment with washin soda. Reason[R]: Washing soda reacts with soluble magneisum and calcium sulphate to form insoluble carbonates.

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