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

  • [IIT 1998]
  • A

    $F{e^{3 + }}$ gives brown colour with potassium ferricyanide

  • B

    $F{e^{2 + }}$gives blue precipitate with potassium ferricyanide

  • C

    $F{e^{3 + }}$ gives red colour with potassium thiocyanate

  • D

    Both $(b)$  and  $(c)$ 

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