Chemistry - Coordination Chemistry Question with Solution | TestHub

Among the following species:

$\left(1\right)Co{\mathrm{Cl}}_3\left(\mathrm{aq}\right)$

$\left(2\right)KMn{O}_4\left(a{q}_{}\right)$

$\left(3\right)Cr{O}_2{F}_2\left(g\right)$

$\left(4\right)F{e}_4{\left[Fe{\left(CN\right)}_6\right]}_3$

$\left(5\right){\left[\mathrm{Ni}(\mathrm{en}{)}_3\right]}^{2+}\left(aq\right)$

$\left(6\right){\mathrm{TiCl}}_3\left(\mathrm{aq}\right)$

$\left(7\right)\left[\mathrm{Cr}{\left({\mathrm{H}}_2\mathrm{O}\right)}_5\mathrm{Cl}\right]{\mathrm{Cl}}_2\cdot {\mathrm{H}}_2\mathrm{O}$

$\left(8\right){\mathrm{K}}_2{\mathrm{MnO}}_4$

$\left(9\right){\mathrm{NiCl}}_2.4{\mathrm{H}}_2\mathrm{O}$

determine the number of species that are coloured as well as paramagnetic.