The image on an exposed and developed ph...

The image on an exposed and developed photographic film is due to

`[Ag(S_(2)O_(3))_(2)]^(-3)`

`AgBr`

`Ag`

`Ag_(2)O`

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The correct Answer is:

Reaction involved in developer:
`K_(2)Fe^(||)(C_(2)O_(4))_(2)+AgBr rarr Kfe^(|||)(C_(2)O_(4))_(2)+Ag darr +KBr`

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