For the complex `[Fe(en)_(2)Cl_(2)]Cl` (en = ethylene diamine ) , identify
(i) the oxidation number of iron ,
(ii) the hybrid orbitals and the shape of the complex,
(iii) the magnetic behaviour of the complex ,
(iv) the number of geometrical isomers ,
(v) whether there is an optical isomer also , and
(vi) name of the complex . (At. no. of Fe = 26)

Explanation

[(i) + 3 (ii) `d^(2)sp^(3)` (iii) paramagnetic (iv) 2 (cis and trans) (v) yes for cis (vi) dichloridobis (ethylene diamine) iron (III) chloride]