The Solvay process used for the production of washing soda is based on which of the following?

Ammonia is soluble in water

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Sodium carbonate is a very stable compound

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Sodium bicarbonate is sparingly soluble in water in the presence of excess of

C O_{2}

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Sodium bicarbonate is insoluble in water

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Solution

The correct option is C Sodium bicarbonate is sparingly soluble in water in the presence of excess of $C O_{2}$
The first step in the process is:
$N a C l + C O_{2} + N H_{3} + H_{2} O ⟶ N a H C O_{3} + N H_{4} C l$

$N a H C O_{3}$ precipitates out of the solution as $C O_{2}$ is bubbled through the ammoniated brine. Excess of $C O_{2}$ decreases the solubility of $N a H C O_{3}$ and it will precipitate out.

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Similar questions

C a C O_{3} + H_{2} O + C O_{2} \to C a (H C O_{3})_{2}

M g (O H)_{2}

M g (O H)_{2}

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