Which of the following statements (s) is (are) correct with reference to ferrous and ferric ions

Options

A. `Fe^(3+)` gives brown colour with potassium ferricyanide
B. `Fe^(3+)` gives blue precipitate with potassium ferricyanide
C. `Fe^(3+)` gives red colour with potassium thiocyante
D. `Fe^(3+)` gives brown colour with ammonium thiocyanate

Explanation

`Fe^(2+)+K_(3)[Fe(CN)_(6)] to underset("Deep Blue")(Kfe[Fe(CN)_(6)])+2K^(+)`
`Fe^(3+) +K_(3)[Fe(CN)_(6)] to underset("Brown ppt.")(Fe[Fe(CN)_(6)]+3K^(+)`
`Fe^(3+)+6KCNS to underset("Blood red")([Fe(CNS)_(6)]^(3-))+6K^(+)`