MCQ
$EAN$ of central metal atom in $Fe_2(CO)_9$ will be
- A$35$
- B$36$
- C$37$
- ✓$33$
✓
Answer
Correct option: D.
$33$
d
$EAN$ value: $Co ( CO )_4, 27+8=35$, which is not equal to $36$ so to attain Sidgwicks's rule of $EAN$, it has to get one electron. So it gets stability by reduction of Co or by dimerization (after that $EAN$ value become 36 ).
$EAN$ value: $Co ( CO )_4, 27+8=35$, which is not equal to $36$ so to attain Sidgwicks's rule of $EAN$, it has to get one electron. So it gets stability by reduction of Co or by dimerization (after that $EAN$ value become 36 ).
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