The IUPAC name of the following complex is $\left[\mathrm{Cr}{\left({\mathrm{NH}}_3\right)}_3{\left({\mathrm{H}}_2\mathrm{O}\right)}_2\mathrm{Cl}\right]{\mathrm{Cl}}_2$

[Cr(NH₃)₃(H₂O)₂]Cl₃

A) Cation is named first

B) While naming the complex, ligands (with proper prefixes) are named first in alphabetical order.

C) The name of metal with its oxidation state as roman number in parenthesis.

D) Prefix is not required to denote counter ion (Cl^-)

Oxidation state of ‘Cr’ = + 3

NH₃  .  .  .  ammine

H₂O .  .  .  aqua

∴ IUPAC name is triamminediaqua chlorido chromium (III) chloride.