Number of ${\mathrm{Cl}}^{-}$  ions satisfying primary valency and secondary valency in the complex  ${\mathrm{CoCl}}_3.5{\mathrm{NH}}_3$ is/are

$\left[\mathrm{Co}{\left({\mathrm{NH}}_3\right)}_5\mathrm{Cl}\right]{\mathrm{Cl}}_2\rightleftharpoons {\left[\mathrm{Co}{\left({\mathrm{NH}}_3\right)}_5\mathrm{Cl}\right]}^{+2}+2{\mathrm{Cl}}^{-}$
One ${\mathrm{Cl}}^{-}$ (present in the coordination sphere)not only satisfies $1^{\mathrm{o}}$ valency but also satisfies $2^{\mathrm{o}}$ valency.