Coordination Compounds - Result Question 73
####80. Iron carbonyl, $[Fe(CO)_5]$ is
[2018]
(a) Tetranuclear
(b) Mononuclear
(c) Dinuclear
(d) Trinuclear
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Solution:
- (b) $[Fe(CO)_5]$
$ \begin{aligned} \text{ EAN } & =Z-O . N .+2(C . N .) \\ & =26-0+2(5) \\ & =26+10 \\ & =36 \end{aligned} $
Only one central metal atom/ion is present and it follows EAN rule, so it is mononuclear.