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Oxidation number of Fe in violet coloured complex `Na_(4)[Fe(CN)_(5)(NOS)]` is :

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Oxidation number of Fe in violet coloured complex `Na_(4)[Fe(CN)_(5)(NOS)]` is :
A. `0`
B. `2`
C. `3`
D. `4`
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Correct Answer - B
`4(+1) + 1 (x) +5 (-1) + 1(-1) = 0`
`:. X = +2` i.e O.S of Fe is +2
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