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A sodium salt on treatment with MgCl(2) ...

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_(4)^(2-)`

Text Solution

Verified by Experts

The correct Answer is:
1
`Mg^(2+)+2HCO_(2)^(-)("from sodium salt")rarrMg(HCO_(3))_(2)("soluble")overset(Delta)rarrMgCO_(3)darr("while")+H_(2)O+CO_(2)`
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