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Question: Answered & Verified by Expert
Oxidation number of \(\mathrm{Cr}\) in \(\left[\mathrm{Cr}(\mathrm{CO})_6\right]\) is
ChemistryCoordination CompoundsAP EAMCETAP EAMCET 2020 (18 Sep Shift 1)
Options:
  • A +6
  • B -6
  • C +3
  • D 0
Solution:
1896 Upvotes Verified Answer
The correct answer is: 0
CO (carbonyl) is a neutral ligand. So, oxidation number of the metal is metal carbonyl compounds will be 0 (zero).
\(\left[\stackrel{0}{\mathrm{Cr}(\mathrm{CO})_6}\right] \text { : Hexacarbonyl chromium (0). }\)

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