Question

How many geometrical isomers are possible in the following coordination entities?
(i)$[Cr(C_2O_4)_3]^{ 3–}$
(ii)$[Co(NH_3)_3Cl_3]$

Answer 1

(i) For $[Cr(C_2O_4)_3] ^{3-}$ , no geometric isomer is possible as it is a bidentate ligand

(ii) $[Co(NH_3)_3Cl_3]$ Two geometrical isomers are possible