Identify the geometry of the complex formed when cobalt chloride is dissolved in water.

Pick out the correct statement with respect to $[Mn(CN)_6]^{3-}.$

The one that can exhibit the highest paramagnetic behaviour among the following is:-
$gly = \text{glycinato}$; $bpy = 2,2'-\text{bipyridine}$

According to Valence Bond Theory,the number of unpaired electrons present in $[MnCl_6]^{3-}$,$[Fe(CN)_6]^{3-}$ and $[Co(C_2O_4)_3]^{3-}$,respectively,are

Identify the coordination complexes in which the central metal ion has $d^4$ configuration.
$(A)$ $[FeO_4]^{2-}$
$(B)$ $[Mn(CN)_6]^{3-}$
$(C)$ $[Fe(CN)_6]^{3-}$
$(D)$ $[Cr(H_2O)_6]^{2+}$
$(E)$ $[NiF_6]^{2-}$
Choose the correct answer from the options given below:

The structure of $K[PtCl_3(C_2H_4)]$ and hybridization of $Pt$ respectively are: