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Question
The unpaired electrons in Ni(CO)4 are ______.
Options
zero
one
three
four
MCQ
Fill in the Blanks
Solution
The unpaired electrons in Ni(CO)4 are zero.
Explanation:
Ni has no oxidation state. The electronic configuration is [Ar] 3d8 4s2 4p0. In the presence of the strong ligand CO, electrons pair and the electronic configuration becomes [Ar] 3d10 4s0 4p0. Hence unpaired electrons are zero.
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IUPAC Nomenclature of Coordination Compounds
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