Chemistry - Salt Analysis Question with Solution | TestHub

Na₂CO₃ and NaHCO₃ can be distinguished by their different reactions.

MgCl₂ solution: Na₂CO₃ gives immediate white precipitate of MgCO₃, while NaHCO₃ does not give a precipitate in cold solution.

HgCl₂ solution: NaHCO₃ gives a characteristic precipitate due to the formation of basic mercury salts.

HCl: Both release CO₂ gas, so it is less useful for distinction.

Correct Answer: (A), (B), (C)