Co-Ordination Compounds Question 250
Question: The unpaired electrons in $ Ni{{( CO )}_4} $ are
Options:
A) zero
B) one
C) three
D) four
Show Answer
Answer:
Correct Answer: A
Solution:
$ Ni{{( CO )}_4}.$ The O.S. of Ni is zero.
Electronic configuration is $ [ Ar ]3d^{8}4s^{2}4p^{0} $ .
In presence of strong ligand CO the paring of electrons take place and electronic configuration will be $ [ Ar ]3d^{10}4s^{0}4p^{0} $ .
Hence unpaired electrons is zero.
