Write down the IUPAC name for each of the following complexes and indicate the oxidation state, electronic configuration, and coordination number. Also, give stereochemistry and magnetic moment of the complex:

    \[\left( i \right)\text{ }[CrC{{l}_{3}}{{\left( py \right)}_{3}}]\left( ii \right)\text{ }Cs[FeC{{l}_{4}}]\left( iii \right)\text{ }{{K}_{4}}[Mn{{\left( CN \right)}_{6}}]\]