Water containing salt X of a divalent metal, when treated with a compound Y gives much lather with soap. Insoluble compound MgCO_(3) and salt of a monovalent metal sulphate are formed. Identify X and Y respectively.

Water containing salt X of a divalent metal, when treated with a compo

1.	Water containing salt X of a divalent metal, when treated with a compound Y gives much lather with soap. Insoluble compound MgCO_(3) and salt of a monovalent metal sulphate are formed. Identify X and Y respectively.
Answer» `CaCl_(2), Na_(2)CO_(3)` `MgSO_(4), Na_(2)CO_(3)` `MgCl_(2), NaHCO_(3)` `CaSO_(4), Mg(HCO_(3))_(2)` SOLUTION :Divalent METAL SALT X that is, `MgSO_(4)` is treated with COMPOUND Y that is `Na_(2)CO_(3)` to form `MgCO_(3)` and `Na_(2)SO_(4)`. `MgSO_(4) + Na_(2)CO_(3) rarrMgCO_(3) + Na_(2)SO_(4)`.