The number of possible isomers by the compounds like $\left[\mathrm{Cd}{\left(\mathrm{gly}\right)}_2\right]$ and $\left[\mathrm{Pd}{\left(\mathrm{gly}\right)}_2\right]$ are respectively

$\left[\mathrm{Cd}{\left(\mathrm{gly}\right)}_2\right]$

${\mathrm{Cd}}^{2+}$ in $\left[\mathrm{Cd}{\left(\mathrm{gly}\right)}_2\right]$

Tetrahedral complexes do not exhibit Geo. isomers

$\therefore$ No of Geo. isomers for $\left[\mathrm{Cd}{\left(\mathrm{gly}\right)}_2\right]$$= 1$

$\stackrel{\mathrm{II}}{[\mathrm{Pd}}{\left(\mathrm{gly}\right)}_2]$

${\mathrm{Pd}}^{2+}$ in $\stackrel{\mathrm{II}}{[\mathrm{Pd}}{\left(\mathrm{gly}\right)}_2]$ 

                             No. of Geo. isomers $= 2$