Reaction between $C O_{2}$ and NaOH produces :

sodium bicarbonate

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sodium carbonate

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carbon monoxide

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none of these

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Solution

The correct option is B sodium bicarbonate
When $C O_{2}$ is absorped into $N a O H$ solution, $N a_{2} C O_{3}$ is formed accompanied by consumption of $N a O H$ in the pH range of 12 and 10. This is followed by formation of $N a H C O_{3}$ accompanied with consumption of $N a_{2} C O_{3}$ in the pH range of 10 and 8.

$N a O H + C O_{2} \to N a_{2} C O_{3}$
$N a_{2} C O_{3} + C O_{2} + H_{2} O \to N a H C O_{3}$

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