Question

A sodium salt on treatment with `MgCl_(2)` gives white precipitate only on heating. The anion of the sodium salt is `:`
A. `HCO_(3)^(-)`
B. `CO_(3)^(2-)`
C. `NO_(3)^(-)`
D. `SO_(3)^(2-)`

Answer 1

Correct Answer - A
`NaHCO_(3) to MgCl_(2)overset(Delta)to ` White ppt.