$C O_{3}^{- 2}$ and $H C O_{3}^{-}$ of sodium both produce precipitate with aq. $M g C l_{2}$ ?

State whether the given statement is true or not.

True

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False

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Solution

The correct option is B False
The given statement is false.
Magnesium carbonate $M g C O_{3}$ is insoluble in water.
Magnesium bicarbonate $M g (H C O_{3})_{2}$ is soluble in water.
$M g (H C O_{3})_{2} Δ - \to M g C O_{3} ↓ + H_{2} O + C O_{2}$

Hence, only sodium carbonate produces precipitate with aq $M g C l_{2}$ .
$N a_{2} C O_{3} + M g C l_{2} \to M g C O_{3} ↓ + 2 N a C l$

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