Determine the magnetic property of $[CoF_6]^{3-}$.

Which of the following complexes can exhibit both geometrical and optical isomerism?

Change in composition of the coordination sphere yields which type of isomers?

Select the correct statement$(s)$ regarding the $[Ni(DMG)_2]$ complex compound.

Which of the following isomerism is not possible for complexes having molecular formulas:
$(i) \ Pt(SCN)_2 \cdot 3PEt_3$
$(ii) \ CoBr \cdot SO_4 \cdot 5NH_3$
$(iii) \ FeCl_3 \cdot 6H_2O$

Out of $TiF_6^{2-}$,$CoF_6^{3-}$,$Cu_2Cl_2$ and $NiCl_4^{2-}$ ($Z$ of $Ti = 22, Co = 27, Cu = 29, Ni = 28$),the colourless species are: