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)

A overset(KCN"added slowly")(to) underset(("Reddish brown precipitate"

1.	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)
Answer» Solution :`underset(A)(FeCl_(3))+3KCNto underset(B)(Fe(CN)_(3))+3KCL` `Fe(CN)_(3)+3KCNtoK_(3)[Fe(CN)_(6)]` `4FeCl_(3)+3K_(4)[Fe(CN)_(6)]toFe_(4)underset(D)([Fe(CN)_(6)]_(3))+12KCl` `Fe_(4)[Fe(CN)_(6)]_(3)+12NaOHto4Fe(OH)_(3)+3Na_(4)[Fe(CN)_(6)]` `FeCl_(3)+Na_(2)HPO_(4)tounderset(E)(FePO_(4))+2NaCl+HCl`