Importance and Applications of Coordination Complexes

Give one test to differentiate $\left[\mathrm{Co}({\mathrm{NH}}_3{)}_5\mathrm{Cl}\right]{\mathrm{SO}}_4$ and $\left[\mathrm{Co}({\mathrm{NH}}_3{)}_5{\mathrm{SO}}_4\right]\mathrm{Cl}$ .

Give an example of coordination compound used in medicine and two examples of biologically important coordination compounds.

Arrange the following in order of increasing molar conductivity

$\mathrm{Mg}\left[\mathrm{Cr}\left({\mathrm{NH}}_3\right)\mathrm{Cl}{}_5\right]$, ${\left[\mathrm{Cr}({\mathrm{NH}}_3{)}_5 \mathrm{Cl}\right]}_3{\left[{\mathrm{CoF}}_6\right]}_2$ and $\left[\mathrm{Cr}({\mathrm{NH}}_3{)}_3 {\mathrm{Cl}}_3\right]$