Match the complexes in Column-I with their properties listed in Column-II.

	Column – I		Column – II
A)	$\left[Co{\left(N{H}_3\right)}_4{\left(H_{2}O\right)}_2\right]C{l}_2$	P)	Geometrical isomers
B)	$\left[Pt{\left(N{H}_3\right)}_{2}C{l}_2\right]$	Q)	Paramagnetic
C)	$\left[Co{\left(H_{2}O\right)}_{5}Cl\right]Cl$	R)	Diamagnetic
D)	$\left[Ni{\left(H_{2}O\right)}_6\right]C{l}_2$	S)	Metal ion with +2 oxidation state

A)  $\left[Co{\left(N{H}_3\right)}_4{\left(H_{2}O\right)}_2\right]C{l}_2$ exhibit geometrical isomerism. It is paramagnetic with  $d^7\left(C{o}^{2+}\right)$ config,
B) $\left[Pt{\left(N{H}_3\right)}_{2}C{l}_2\right]$  have  $pf$  in + 2 oxidation state, diamagnetic, can exhibit geometrical isomerism
C)  $\left[Co{\left(H_{2}O\right)}_{5}Cl\right]Cl$ have  $Co$ in + 2 oxidation state with  $d^7$ config. If is paramagnetic
D)  $\left[Ni{\left(H_{2}O\right)}_6\right]C{l}_2$ have  $Ni$ in + 2 oxidation state have  $t_{2g}^6{e}_g^{2-}$ config. With 2 unpaired electrons. So paramagnetic