A sodium salt X of an unknown anion when treated with `MgCI_(2)` gives white precipitate Y only on boiling. It gives lime water test positve but doesn’t gives `KMnO_(4)` test. Compound X and Y can't be separately by using:

Options

A. phenolphthalein test
B. `AgNO_(3)` test
C. `CaCI_(2)` test
D. `Hg_(2)(NO_(3))_(2)` test

Answer

A

Explanation

`X rarr HCO_(3)^(-)`
`Y rarr CO_(3)^(2-)`