MCQ
The oxidation state of $Fe$ in the complex $[Fe{(CO)_5}]$ is
  • A
    $-1$
  • B
    $2$
  • C
    $4$
  • $0$

Answer

Correct option: D.
$0$
d
(d) In $[Fe{(CO)_5}],\,\,\,x + 5(0) = 0$, so oxidation number of $Fe$ is zero.

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