The number of linkage isomers possible for $[Pt(en)(NO_2)_2]$ is :

How many geometrical isomers does $[Pt(NH_3)(Br)(Cl)(Py)]$ have?

$A$ complex compound which can show optical isomerism but not geometrical isomerism is:

Complex compound$(s)$ having an even number of space (stereo) isomers is/are :
(where $AA^{-}$ is a symmetrical bidentate ligand and $a, b, c, d, e$ are monodentate ligands)

Match the following:

List-$I$ (Complex)	List-$II$ (Spin only Magnetic moment)
$A$. $[CoF_6]^{3-}$	$I$. $0$
$B$. $[Co(C_2O_4)_3]^{3-}$	$II$. $\sqrt{24}$
$C$. $[FeF_6]^{3-}$	$III$. $\sqrt{8}$
$D$. $[Mn(CN)_6]^{3-}$	$IV$. $\sqrt{35}$
	$V$. $\sqrt{15}$

The correct increasing order of spin-only magnetic moment values of the complex ions $[MnBr_{4}]^{2-}$ $(A)$, $[Cu(H_{2}O)_{6}]^{2+}$ $(B)$, $[Ni(CN)_{4}]^{2-}$ $(C)$ and $[Ni(H_{2}O)_{6}]^{2+}$ $(D)$ is: