Na2S2O3- 5H2O is used in photography to -

The correct option is A remove undecomposed AgBr as a soluble complex. Na_2S_2O_3· 5H_2O #160;is used in photography to remove undecomposed AgBr as a so ...

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Standard XII

Chemistry

Structural and Physical Properties of Carbonyls

Na2S2O3· 5H2O...

Question

$N a_{2} S_{2} O_{3} \cdot 5 H_{2} O$ is used in photography to :

reduce AgBr to metallic Ag.

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remove reduced Ag.

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remove undecomposed AgBr as a soluble complex.

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convert metallic Ag to silver salt.

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Solution

The correct option is A remove undecomposed AgBr as a soluble complex.
$N a_{2} S_{2} O_{3} \cdot 5 H_{2} O$ is used in photography to remove undecomposed AgBr as a soluble complex.
Hence option C is correct.

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Na2S2O3⋅5H2O is used in photography to :

The correct option is A remove undecomposed AgBr as a soluble complex.Na2S2O3⋅5H2O is used in photography to remove undecomposed AgBr as a soluble complex.Hence option C is correct.

$N a_{2} S_{2} O_{3} \cdot 5 H_{2} O$ is used in photography to :

The correct option is A remove undecomposed AgBr as a soluble complex.
$N a_{2} S_{2} O_{3} \cdot 5 H_{2} O$ is used in photography to remove undecomposed AgBr as a soluble complex.
Hence option C is correct.