Answer
b) Tetraamminecopper(II) chloride is the correct answer
Work Step by Step
These are the following rules for IUPAC naming the coordination compounds :
1) The ligand named first then metal.
2) The charge of metal written with the Roman letters
3) Alphabetical order is used for naming the ligands and before metal ion
4) the complex ion is an anion so we write the ending of the metal name with adding –ate.
In the given coordination compound, Cu is the copper metal, and are the ammine group ligand and chloride cl outside
Cl has oxidation state of -1 and NH3 has oxidation state of 0.
So let us calculate the charge on the metal let it be x.
then,
x+0$\times$4=2
x=2
so it will be written in roman letters II after the metal name
Hence, the IUPAC name will be (b) Tetraamminecopper(II) chloride
