`K_(3)[Fe(CN)_(6)]+FeCl_(3) to Fe[Fe(CN)_(6)]

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

Indicate the number of unpaired electrons in K_(3)[Fe(CN)_(6)] and K_(4)[Fe(CN)_(6)]

K_3[Fe(CN)_6] is a

In the Lassaigne's test, prussian blue colour is obtained due to formation of (1) Na_(4)[Fe(CN)_(6)] (2) Fe_(4)[Fe(CN)_(6)]_(3) (3) Fe_(2)[Fe(CN)_(6)] (4) Fe_(3)[Fe(CN)_(6)]_(4)

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)