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))]`

The oxidation states of transition metal atoms in K_(2)Cr_(2)O_(7),KMnO_(4)andK_(2)FeO_(4) , respectively, are x, y and z. The sum of x, y and z is ________.

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

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

Let the oxidation state of the transition element of compound K_2Cr_2O_7,KMnO_4 and K_2FeO_4 be X,Y, and Z respectively, calculate X+Y+Z .

In the Lassaigne’s test for nitrogen in an organic compound, the Prussian blue colour is obtained due to the formation of: (a) Na_(4)[Fe(CN)_(6)] (b) Fe_(4)[Fe(CN)_(6)]_(3) (c) Fe_(2)[Fe(CN)_(6)] (d) Fe_(3)[Fe(CN)_(6)]_(4)

Among the following which is most stable ? (1) underset((X))([Fe(CN)_(6)]^(3-))" and "underset((Y))([FeF_(6)]^(3-)) (2) underset((S))([Fe(CN)_(6)]^(3-))" and "underset((T))([Fe(CN)_(6)]^(4-)) (3) underset((P))([Cr(CN)_(6)]^(N-6))" and "underset((Q))([Cr(CN)_(6)]^(n-4)) Choose the correct code