The $IUPAC$ name of the complex $[CrCl_2(H_2O)_4]NO_3$ is:

Using $IUPAC$ norms,write the formulas for the following:
$(i)$ Tetrahydroxozincate $(II)$
$(ii)$ Potassium tetrachloridopalladate $(II)$
$(iii)$ Diamminedichloridoplatinum $(II)$
$(iv)$ Potassium tetracyanonickelate $(II)$
$(v)$ Pentaamminenitrito$-O$-cobalt $(III)$
$(vi)$ Hexaamminecobalt $(III)$ sulphate
$(vii)$ Potassium tri(oxalato)chromate $(III)$
$(viii)$ Hexaammineplatinum $(IV)$
$(ix)$ Tetrabromidocuprate $(II)$
$(x)$ Pentaamminenitrito$-N$-cobalt $(III)$

In the Brown ring complex $[Fe(H_2O)_5NO]SO_4$,the primary valency (oxidation state) of $Fe$ is:

The sum of oxidation states of two silver ions in $[Ag(NH_{3})_{2}][Ag(CN)_{2}]$ complex is $....$ .

The $IUPAC$ name of the complex $[Cr(NH_3)_3(H_2O)_2Cl]Cl_2$ is:

State the $IUPAC$ name of the following complex: $[Ag(NH_{3})_{2}][Ag(CN)_{2}]$