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Extraction of `Ag` from sulphide ore and removel of unreacted silver bromide from photogrphic plate involve complexes:A. `[Ag(S_(2)O_(3))_(2)]^(3-)`in bothB. `[Ag(CN)_(2)]^(-)`in bothC. `[Ag(S_(2)O_(3))_(2)]^(3-),[Ag(CN)_(2)]^(-)`respectivelyD. `[Ag(CN)_(2)^(-),[Ag(S_(2)O_(3))_(2)]^(3-)`respectively |
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Answer» Correct Answer - D `Ag_(2)S +4CN^(-) rarr 2[Ag(CN)_(2)]^(-)+S^(2-)` `AgBr +2S_(@)O_(3)^(2-) rarr [Ag(S_(2)O_(3))]^(3-)+Br(-)` |
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