In the complex Fe(CO)_x,the value of x is : | vedclass

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(C) The complex $Fe(CO)_x$ follows the $18$-electron rule (or Sidgwick's $EAN$ rule) for stability.For a stable metal carbonyl,the total number of val

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$5$

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(C) The complex $Fe(CO)_x$ follows the $18$-electron rule (or Sidgwick's $EAN$ rule) for stability.For a stable metal carbonyl,the total number of valence electrons around the central metal atom should be $36$ (for $3d$ series metals).The formula for $EAN$ is $Z - O.S. + 2(x) = 36$,where $Z$ is the atomic number of $Fe$ $(26)$ and $O.S.$ is the oxidation state of $Fe$ ($0$ in metal carbonyls).Substituting the values: $26 - 0 + 2x = 36$.$2x = 36 - 26 = 10$.$x = 5$.Therefore,the complex is $Fe(CO)_5$.

In the complex $Fe(CO)_x$,the value of $x$ is :

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