A) \[{{\left[ Ag{{({{S}_{2}}{{O}_{3}})}_{2}} \right]}^{3-}}\,\,in\,\,both\]
B) \[{{[Ag{{(CN)}_{2}}]}^{-}}\,\,in\,\,both\]
C) \[{{[Ag{{({{S}_{2}}{{O}_{3}})}_{2}}]}^{3-}},\,\,{{[Ag{{(CN)}_{2}}]}^{-}}\,\,respectively\]
D) \[{{[Ag{{(CN)}_{2}}]}^{-}}\,,\,\,{{[Ag{{({{S}_{2}}{{O}_{3}})}_{2}}]}^{3-}}\,\,respectively\]
Correct Answer: D
Solution :
\[{{\operatorname{Ag}}_{2}}S\,\,+4C{{N}^{-}}\,\,\xrightarrow{{}}\,\,2{{\left[ Ag{{\left( CN \right)}_{2}} \right]}^{-}}\,\,+\,\,{{S}^{2-}}\] \[AgBr\,\,+\,\,2{{S}_{2}}O_{3}^{2-}\,\,\xrightarrow{{}}\,\,{{\left[ Ag{{({{S}_{2}}{{O}_{3}})}_{2}} \right]}^{3}}^{-}\,\,+\,\,B{{r}^{-}}~\]
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