Hypo is used in photography to (a) reduce \( \mathrm{AgBr} \) grain...

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Hypo is used in photography to
(a) reduce \( \mathrm{AgBr} \) grains to metallic silver
P
(b) convert metallic silver to silver salt
W
(c) remove undecomposed silver bromide as a soluble complex
(d) remove reduced silver.
(1988)
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