Fe_(4)[Fe(CN)_(6)]_(3)

A overset(KCN"added slowly")(to) underset(("Reddish brown precipitate"))(B) overset("In excess KCN precipitate dissolves")(to)underset(("Yellow solution"))(C) A overset(K_(4)Fe(CN)_(6))(to) underset(("Intense blue precipitate"))(D) overset(NaOH)(to) ("Red precipitate") A overset(Na_(2)HPO_(4))(to) underset(("Yellowish white precipitate"))(E) How many produces are correctly match? A=FeCl_(3), A=FeCl_(2), A=CuCl_(2), B=Fe(CN)_(3) B=K_(3)Fe(CN)_(6), C=K_(3)Fe(CN)_(6), C=K_(4)[Fe(CN)_(6)], D=Fe_(4)[Fe(CN)_(6)]_(3) D=Fe[Fe(CN)_(6)], E=FePO_(4)

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)(CN_(6)]_(3) (c ) Fe_(2)[Fe(CN)_(6)] (d) Fe_(3)[Fe(CN)_(6)]_(4)

K_(3)[Fe(CN)_(6)]+FeCl_(2) to Fe_(3)[Fe(CN)_(6)]_(2)darr

K_(3)[Fe(CN)_(6)]+FeCl_(2) to Fe_(3)[Fe(CN)_(6)]_(2)darr

Find the oxidation number of Fe in Fe_(3)O_(4) and in Fe(III)_(4)[Fe(II)(CN)_(6)]_(3) .

In which of the following ion does Fe exist in the same oxidation state ? [Fe(CN)_(6)]^(4-),[Fe(CN)_(6)]^(3-),[Fe(CN)_(5)NO]^(2-)