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Head Elements (Group 1)

Sodium hydrox...

Question

Sodium hydroxide reacts with $S O_{2}$ in aqueous medium to give:

{N a H S O}_{3}

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{N a}_{2} S_{2} O_{3}

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N a H {S O}_{4}

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{N a}_{2} {S O}_{3}

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Solution

The correct option is A ${N a H S O}_{3}$
Sodium hydroxide on reaction with sulphur dioxide forms sodium sulphite and water. The reaction is:

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

Hence option D is correct.

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