Three arrangements are shown for the complex $[CoBr_2(NH_3)_2(en)]^{\oplus}$. Which one is the wrong statement?

The correct statements from the following are:
$A$. The strength of anionic ligands can be explained by crystal field theory.
$B$. Valence bond theory does not give a quantitative interpretation of kinetic stability of coordination compounds.
$C$. The hybridization involved in the formation of $\left[Ni(CN)_4\right]^{2-}$ complex is $dsp^2$.
$D$. The number of possible isomer$(s)$ of $cis-\left[PtCl_2(en)_2\right]^{2+}$ is one.
Choose the correct answer from the options given below:

Match the following:

Column-$1$ (Reaction)	Column-$2$ (Main product)
$A$. $4FeCl_3 + 3K_4[Fe(CN)_6] \rightarrow$	$I$. $Fe_4[Fe(CN)_6]_3$
$B$. $ZnCl_2 + 4NaOH \rightarrow$	$V$. $Na_2ZnO_2$
$C$. $2FeCl_3 + H_2S \rightarrow$	$II$. $FeCl_2$

Given below are two statements.
Statement $I$: In $CuSO_{4} \cdot 5H_{2}O$,$Cu-O$ bonds are present.
Statement $II$: In $CuSO_{4} \cdot 5H_{2}O$,ligands coordinating with $Cu(II)$ ion are $O$- and $S$-based ligands.
In the light of the above statements,choose the correct answer from the options given below.

Which of the following has a yellow colour?

Which of the following change the colour of the aqueous solution of $FeCl_3$?