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Question: Answered & Verified by Expert
The spin only magnetic moment value (in Bohr's magneton units) of [Cr(CO)6] is:
ChemistryCoordination CompoundsNEET
Options:
  • A 0                            
  • B 2.84
  • C 4.90
  • D 5.92
Solution:
2814 Upvotes Verified Answer
The correct answer is: 0                            
In Cr (CO) 6 ,Cr has 3 d 6 electronic configuration which has no unpaired electrons and hence, zero magnetic moment.

CO is a strong field ligand which causes pairing up of unpaired electrons in d-orbitals of central metal atom.

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