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Write the balanced chemical equations fo...

Write the balanced chemical equations for developing a black and white photographic film Also, give the reason as to why the solution of sodium thiosulphate on acidification turns milky white and give the balanced chemical equation of this reaction .

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A mild reducing agent is used for senitised silver bromide The unreacted `AgBr` is treated with sdium thiosulphate (hypo) to give a solubel complex
`AgBr + 2Na_(2)S_(2)O_(3) rarrNa_(3)[AgS_(2)O_(3)]+NaBr`
An aqueous solution of sodium thiosulphate on acidification turns milky whe because colloidal sulphur is formed
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