Select the incorrect match.

  • A
    $Fe^{3+} + [Fe(CN)_6]^{4-} \to$ Blue colour ppt.
  • B
    $Fe^{3+} + [Fe(CN)_6]^{3-} \to$ Red brown colouration
  • C
    $Fe^{2+} + [Fe(CN)_6]^{3-} \to$ Blue colour ppt.
  • D
    $Fe^{2+} + [Fe(CN)_6]^{4-} \to$ Red brown colouration

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The mismatched combinations are
$A.$ Chlorophyll $- Co$
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$C.$ Photography $- [Ag(CN)_2]^-$
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$E.$ Chelating ligand $- D^{-}$\text{Penicillamine}
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The complex $[Co(NH_3)_5Br]SO_4$ will give a white precipitate with:

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Copper $(II)$ ions give a reddish brown precipitate with potassium ferrocyanide. The formula of the precipitate is

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