Which of the following statement (s) is (Are) correct with reference to ferrous and ferric ions ?

Options

A. `Fe^(3+)` gives brown colour with potassium ferricyanide.
B. `Fe^(2+)` gives blue colour precipitate with potassium ferricyanide.
C. `Fe^(3+)` gives black precipitate with potassium thiocynate.
D. `Fe^(2+)` gives brown colour with ammonium thiocyanate.

Answer

B