`AgCl` dissolved in excess of `NH_(3), KCN` and `Na_(2)S_(2)O_(3)` solutions the complex produces ions

Options

A. `[Ag(NH_(3))_(2)]^(+), [Ag(CN)_(2)]^(-) & [Ag(S_(2)O_(3))_(2)]^(3-)`
B. `[Ag(NH_(2))_(2)]^(2+), [Ag(CN)_(2)]^(3-) & [Ag_(4) (S_(2)O_(3))_(5)]^(2+)`
C. `[Ag(NH_(3))_(2)]^(2+), [Ag(CN)_(2)]^(+) & [Ag_(2) (S_(2)O_(3))_(2)]^(2-)`
D. `[Ag(NH_(3))_(4)]^(+), [Ag(CN)_(4)]^(3-) & [Ag_(2) (S_(2)O_(3))_(2)]^(2-)`

Answer

A

Explanation

`EAN =Z-x+n xx y`, Z=At number of metal ion, x=charge of metal ion, n=secondary valency