chapter 9          coordination  compounds          XII CHEM 

1.
For the complex [Fe(en)2Cl2] 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)

2.
Compare the following complexes with respect to their shape, magnetic behaviour and the hybrid orbitals involved:

(i) [CoF4]2−

(ii) [Cr(H2O)2 (C2O4)2]−

(iii) [Ni(CO)4]

3.
Write the name and draw the structure of each of the following complex compounds:

(i) [Co(NH3)4 (H2O)2]Cl3

(ii) [Pt(NH3)4] [NiCl4]