The $IUPAC$ name of the Wilkinson's catalyst $[RhCl(PPh_3)_3]$ is

The oxidation state of $Mo$ in its oxo-complex species $[Mo_2O_4(H_2O)_2(C_2H_4)_2]^{2-}$ is :

The $IUPAC$ name of the following complex is $[Co(NH_2 CH_2 CH_2 NH_2)_2 Br_2] Br$.

What is the oxidation number of gold in the complex $[AuCl_{4}]^{-}$?

Using $IUPAC$ norms,write the systematic names of the following:
$(i)$ $[Co(NH_3)_6]Cl_3$
$(ii)$ $[Pt(NH_3)_2Cl(NH_2CH_3)]Cl$
$(iii)$ $[Ti(H_2O)_6]^{3+}$
$(iv)$ $[Co(NH_3)_4Cl(NO_2)]Cl$
$(v)$ $[Mn(H_2O)_6]^{2+}$
$(vi)$ $[NiCl_4]^{2-}$
$(vii)$ $[Ni(NH_3)_6]Cl_2$
$(viii)$ $[Co(en)_3]^{3+}$
$(ix)$ $[Ni(CO)_4]$

What is the $IUPAC$ name of the complex $[Co(NH_3)_4 Cl_2]Cl$?