A) Reduce \[AgBr\] grains to metallic silver
B) Convert the metallic silver to silver salt
C) Remove undecomposed silver bromide as a soluble complex
D) Remove reduced silver
Correct Answer: C
Solution :
\[AgBr+2N{{a}_{2}}{{S}_{2}}{{O}_{3}}\,\to \,N{{a}_{3}}[Ag{{({{S}_{2}}{{O}_{3}})}_{2}}]+NaBr\]
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