An octahedral complex is formed when hybrid orbitals of the following type are involved:

The magnetic moment of $Cr$ in $[Cr(H_2O)_6]Cl_3$ is $3.88 \, BM$. Which of the following is the possible orbital distribution for $Cr$?

If $Ni^{2+}$ is replaced by $Pt^{2+}$ in the complex $[NiCl_2Br_2]^{2-}$,which of the following properties are expected to change?
$A.$ Geometry
$B.$ Geometrical isomerism
$C.$ Optical isomerism
$D.$ Magnetic properties

Which of the following facts about the complex $[Cr(NH_3)_6]Cl_3$ is wrong?

Which of the following statements is correct?

The geometry and magnetic property of $[NiCl_4]^{2-}$,respectively are