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Stoichiometry

Na2SO3 and ...

Question

$N a_{2} S O_{3}$ and $N a_{2} S_{2} O_{3}$ cannot be distinguished by:

addition of

P b (O A c)_{2}

followed by heating

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addition

C a C l_{2}

solution

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addition of

A g N O_{3}

followed by heating

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all of these

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Solution

The correct option is B addition $C a C l_{2}$ solution
A) $N a_{2} S_{2} O_{3} + P b (C H_{3} C O O)_{2} \to N a (C H_{3} C O O) + P b S_{2} O_{3}$

B) $C a C l_{2} + N a_{2} S O_{3} \to C a S O_{3} + 2 N a C l$

$C a C l_{2} + N a_{2} S_{2} O_{3} \to C a S O_{3} + N a C l$

C) $2 A g N O_{3} + N a_{2} S O_{3} \to A g_{2} S O_{3} + 2 N a N O_{3}$

$2 A g N O_{3} + N a_{2} S_{2} O_{3} \to A g_{2} S_{2} O_{3} + 2 N a N O_{3}$

Hence , option B is correct .

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