Chemistry - Coordination Chemistry Question with Solution | TestHub

Number of Species that will show Fac-Mer isomerism among the following.

(i)$\left[{\mathrm{PtCl}}_2{\left({\mathrm{NH}}_3\right)}_2\right]$

(ii) $\left[\mathrm{Co}{\left({\mathrm{NH}}_3\right)}_3{\left({\mathrm{NO}}_2\right)}_3\right]$

(iii) ${\left[\mathrm{Co}(\mathrm{en}{)}_3\right]}^{3+}$

(iv) ${\left[{\mathrm{CoCl}}_2(\mathrm{en}{)}_2\right]}^{+}$

(v) ${\left[\mathrm{Pt}{\left({\mathrm{NH}}_3\right)}_3{\left({\mathrm{NO}}_2\right)}_3\right]}^{+}$

(vi) $[{\mathrm{CoCl}}_2($ tren $)]\mathrm{Cl}$