A sodium salt on treatment with \[MgC{{l}_{2}}\]gives white precipitate only on heating. The anion of the sodium salt is [IIT JEE Screening 2004]

A sodium salt on treatment with \[MgC{{l}_{2}}\]gives white precipitat

1.	A sodium salt on treatment with \[MgC{{l}_{2}}\]gives white precipitate only on heating. The anion of the sodium salt is [IIT JEE Screening 2004]
A.	\[HCO_{3}^{-}\]
B.	\[CO_{3}^{2-}\]
C.	\[NO_{3}^{-}\]
D.	\[SO_{4}^{2-}\]
Answer» B. \[CO_{3}^{2-}\]

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A sodium salt on treatment with \[MgC{{l}_{2}}\]gives white precipitate only on heating. The anion of the sodium salt is [IIT JEE Screening 2004]

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