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Which of the following chemical reactions `(s)` is (are) involved in the developing of photographic plate ?

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Which of the following chemical reactions `(s)` is (are) involved in the developing of photographic plate ?
A. `C_(6)H_(4)(OH)_(2) +2AgBr rarr 2Ag+C_(6)H_(4)O_(2)+2HBr`
B. `AgBr+2Na_(2)S_(2)O_(3)rarrNa_(3)[Ag(S_(2)O_(3))_(2)]+NaBr`
C. `AgBr+2NH_(3)(aq)rarr[Ag(NH_(3))_(2)]Br`
D. `2AgBr+Na_(20S_(2)O_(3)rarrAg_(2)S_(20O_(3)+2NaBr`
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Correct Answer - A,B,
`(A)` In making negative`//` positive of photographic film
`(B)` In fixing of photographic film by removing unreduced AgBr as soluble complex
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