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STD 12 - 5. Co-ordination chemistry — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 5. Co-ordination chemistry4 Marks
MCQ
In $Fe(CO)_5$ , the $Fe—C$ bond has
  • A
    Ionic character
  • B
    $\sigma -$ character only
  • C
    $\pi -$ character only
  • ✓
    both $\sigma $ and $\pi $ character
✓

Answer

Correct option: D.
both $\sigma $ and $\pi $ character
d
There is $d \pi-\rho \pi$ metal to ligand back bonding in $Fe - C$ bond of $Fe ( CO )_5$. So, it possesses both $\sigma$ and $\pi$ character.

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