Question

Describe the state of hybridization, the shape and the magnetic behaviour of the following complexes:

(i) [Cr(H2O)2(C2O4)2]–

(ii) [Co(NH3)2(en)2]3+, (en = ethane-1,2-diamine)u200b

(At. Nos : Cr = 24, Co = 27)

Answer 1

(i) [Cr(H2O)2(C2O4)2]–

(a) Hybridization — d2 sp3

(b) Shape — octahedral
(c) Magnetic behaviour — Paramagnetic

(ii) [Co(NH3)2 (en)2]3+

(a) Hybridisation — d2 sp3

(b) Shape — Octahedral

(c) Magnetic behaviour — diamagnetic