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Question: Answered & Verified by Expert
The spin magnetic moment of cobalt in the compound Hg[Co(SCN)4] is
ChemistryCoordination CompoundsNEET
Options:
  • A 3
  • B 8
  • C 15
  • D 24
Solution:
2738 Upvotes Verified Answer
The correct answer is: 15
In the given complex, Co is in +2 oxidation state
27Co=[Ar]183d74s2
Co2+=[Ar]183d7
i.e., it has three unpaired electrons.
So spin magnetic moment = n n+2 = 3 3+2 = 15 B.M.

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