In the complex $cis-[Cr(en)_2Cl_2]^+$,the oxidation state of $Cr$,the type of $d$-orbital involved in the valence shell,and the coordination number are respectively:

The magnetic moment of the high spin complex is $5.92 \ BM$. What is the electronic configuration?

In a square planar complex of $Co^{2+}$ ion,the unpaired electron is present in which orbital?

Determine the hybridisation,magnetic nature,and spin-only magnetic moment for $[Co(C_2O_4)_3]^{3-}$

Square-planar geometry is shown by

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: