When $S O_{2}$ gas is passed into aqueous $N a_{2} C O_{3}$ , product formed is $N a_{2} S O_{3}$ , the type of the reaction is :

addition reaction

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displacement reaction

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double displacement reaction

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none of these

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Solution

The correct option is A displacement reaction
$S O_{2}$ reacts with sodium carbonate.
Reaction:
$N a_{2} C O_{3} + H_{2} O + S O_{2} \to N a_{2} S O_{3} + C O_{2} + H_{2} O$

So, it is a displacement reaction.

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When SO2 gas is passed into aqueous Na2CO3, product formed is Na2SO3, the type of the reaction is :

The correct option is A displacement reactionSO2 reacts with sodium carbonate.Reaction:Na2CO3+H2O+SO2→Na2SO3+CO2+H2OSo, it is a displacement reaction.

When $S O_{2}$ gas is passed into aqueous $N a_{2} C O_{3}$ , product formed is $N a_{2} S O_{3}$ , the type of the reaction is :

The correct option is A displacement reaction
$S O_{2}$ reacts with sodium carbonate.
Reaction:
$N a_{2} C O_{3} + H_{2} O + S O_{2} \to N a_{2} S O_{3} + C O_{2} + H_{2} O$

So, it is a displacement reaction.