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Q.
The IUPAC name of $[Ni(CO)_4]$ is
Coordination Compounds
Solution:
When we write the IUPAC name for a coordination complex, if the coordination entity is neutral, then the name of Ligands come first followed by the name of the metal and the oxidation state in $0$ .
Thus, the IUPAC name for $\left[ Ni ( CO )_{4}\right]$ is Tetracarbonylnickel (o).