A mixture of $N a_{2} C O_{3}$ and $N a_{2} S O_{3}$ is treated with dilute $H_{2} S O_{4}$ in a setup such
that the gaseous mixture emerging can pass first through a beaker containing
solution of $B a C l_{2}$ and then the remaining gaseous mixture is passed through
another beaker containing $K_{2} C r_{2} O_{7}$ acidified with dilute $H_{2} S O_{4}$ .
Which of the following will you observe?

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The $B a C l_{2}$ solution remains unaffected and the acidified dichromate solution turns green

Both the solutions remain unaffected

The $B a C l_{2}$ solution gives a white precipitate and the acidified dichromate solution remains unaffected

The $B a C l_{2}$ solution gives a white precipitate and the acidified dichromate solution turns blue

answer is D.

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Detailed Solution

$C O_{2} ↑ \overset{B a C l_{2} s o l^{n}}{\to} w h i t e p p t S O_{2} ↑ \overset{B a C l_{2} s o l^{n}}{\to} w h i t e p p t$

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