(a) Draw the geometrical isomers of [ Co ( en )_2 Cl_2]^2+. Which geometrical isomer of [ Co ( en )_2 Cl_2]^2+ is not optically active and why? 2+1…

Draw the geometrical isomers of $\displaystyle \left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]^{2+}$. Which geometrical isomer of $\displaystyle \left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]^{2+}$ is not optically active and why ? $\displaystyle 2+1$

Write the hybridisation and magnetic behaviour of $\displaystyle \left[\mathrm{CoF}_{6}\right]^{3-}$. [Given : Atomic number of Co = $\displaystyle 27$]