Question

Calculate the oxidation state of central metal atom in
i) `[Co(NH_(3))_(5)Cl]^(2+)`
ii) `K_(4)[Fe(CN)_(6)]`
iii) `[Co(NO_(2))_(2)(py)_(2)(NH_(3))_(2)]NO_(3)`

Answer 1

i) `[Co(NH_(3))_(5)Cl]^(2+)`
`x+5 xx (0) + (-)=+2,` or x=3 , Oxidation state of Co= +3
ii) `K_(4)[Fe(CN)_(6)]`
`4xx(1) + x + 6(-1)=0, or x=2`, Oxidation state of Fe= +2
iii) `[Co(NO_(2))_(2)(py)_(2)(NH_(3))_(2)]NO_(3)`
`x+2(-1)+2xx(0)+2xx(0)+(-1)=0`, or x=3 , Oxidation state of Co=+3