Triple degenerate $d-$ orbitals are exactly half-filled in

The statements that are incorrect about the nickel$(II)$ complex of dimethylglyoxime are:
$A$. It is red in colour
$B$. It has a high solubility in water at $pH = 9$
$C$. The $Ni$ ion has two unpaired $d$-electrons
$D$. The $N - Ni - N$ bond angle is almost close to $90^{\circ}$
$E$. The complex contains four five-membered metallacycles (metal containing rings)
Choose the correct answer from the options given below:

Match the coordination number and type of hybridisation with distribution of hybrid orbitals in space based on Valence bond theory.

Coordination number and type of hybridisation	Distribution of hybrid orbitals in space
$(a)$. $4, sp^3$	$(i)$. trigonal bipyramidal
$(b)$. $3, sp^2$	$(ii)$. octahedral
$(c)$. $5, sp^3 d$	$(iii)$. tetrahedral
$(d)$. $6, sp^3 d^2$	$(iv)$. trigonal planar

Select the correct option $:$

Match the following:

List-$I$ (Hybridisation)	List-$II$ (Compound/ion)
$A. sp^3d$	$I. [PtCl_4]^{2-}$
$B. sp^3d^2$	$II. SF_6$
$C. dsp^2$	$III. BCl_3$
$D. dsp^3$	$IV. PCl_5$
	$V. ClF_3$

The correct match is:

What type of hybridization is exhibited by $[CoF_6]^{3-}$?

$[FeF_6]^{3-}$ has ........ hybridisation and ....... geometry. Select the best option to fill the blank space respectively: