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:

  1. (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.



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