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.
A. `CaCl_(2), Na_(2)CO_(3)`
B. `MgSO_(4), Na_(2)CO_(3)`
C. `MgCl_(2), NaHCO_(3)`
D. `CaSO_(4), Mg(HCO_(3))_(2)`
A. `CaCl_(2), Na_(2)CO_(3)`
B. `MgSO_(4), Na_(2)CO_(3)`
C. `MgCl_(2), NaHCO_(3)`
D. `CaSO_(4), Mg(HCO_(3))_(2)`
Correct Answer – B
Divalent metal salt X i.e., `MgSO_(4)` is treated with compound Y that is `Na_(2)CO_(3)` to form `MgCO_(3)` and `Na_(2)SO_(4)`