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The oxidation states of iron atoms in co...

The oxidation states of iron atoms in compounds (A) ,(B) and (C) , respectively , are x , y and z . The sum of x , y and z is _______
`Na_(4)[Fe underset((A))((CN)_(5)) (NOS)] " " Na_(4) underset((B))([FeO_(4)]) " " [Fe_(2) underset((C))((CO)_(9))]`

Text Solution

Verified by Experts

The correct Answer is:
6
(A) `Na_(4)[overset(x)(Fe)(CN)_(5)(NOS)]`
`(+1)4+x+(-1)5+(-1)1=0`
`x=+2`
(B) `Na_(4)[overset(y)(Fe)O_(4)]`
`(+1)4+y+(-2)4=0`
`y=+4`
(C) `[overset(z)(F)e_(2)(CO)_(9)]`
`2z+0xx9=0`
`z=0`
so,`(x+y+z)=+2+4+0=6`.
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