Statement-I: Permanent hardness of water is removed by treatment with washing soda.

Statement-II: Washing soda reacts with soluble magnesium and calcium sulphate to form insoluble carbonates.

• A

  Both statement-I and statement-II are correct

• B

  Statement-I is correct and statement-II is incorrect

• C

  Statement-I is incorrect and statement-II is correct

• D

  Both statement-I and statement-II are incorrect