(a) For the complex `[Fe(H_(2)O)_(6)]^(3+)` , write the hybridization, magnetic character and spin of the complex. (At. Number : Fe =26)
(b) Draw one of the geometrical isomers of the complex `[Pt(en)_(2)Cl_(2)]^(2+)` which is optically inactive.

Explanation

(a) `[Fe(H_(2)O)_(6)]^(3+)`
`Fe^(3+) = 3d^(5)`
`Fe^(3+) ("with "H_(2)O "weak ligand")^(=3d^(5))`

`**"Hybridisation" = Sp^(3)d^(2)`
`**"Magnetic character " = "Paramagnetic"`
`**"Spin " = "Outer orbital or high spin complex."`
(b) Trans isomer of `[Pt(en)_(2)CI_(2)]^(2+)` is optically inactive.

Mirror images are super imposable. Hence inactive.