Which of the following sets of complexes is/are correct with respect to the properties indicated against each ?

Which of the following sets of complexes is/are correct with respect t

1.	Which of the following sets of complexes is/are correct with respect to the properties indicated against each ?
Answer» `[V(CO)_6],K_4[Mn(CN)_6], Cs_2[CuF_6]`-Low spin octahedral complex with one unpaired electron `K_2 [NiCl_4], [NICL(PPh_3)_3], [NiCl_2(PPh_3)_2]`- Tetrahedral geometry containing two unpaired electrons `CS[CuF_4], [Cu(NH_3)_4] (NO_3)_2, K_3[Cu(CN)_4]`-Square planar geometry and diamagnetic `K_4[Fe(CN)_6], [Fe(H_2O)_5NO]SO_4, Na_4[Fe(CN)_5NO]` - Diamagnetic having +2 oxidation state of CENTRAL metal atom Solution :(A)`[V(CO)_6]-d^2sp^3` containing one unpaired electron `(d^5)` `K_4[Mn(CN)_6]-d^2sp^3` containing one unpaired electron `(d^5)` `[CuF_6]^(2-)`-It is a low spin octahedral complex with one unpaired electron `(d^7)` (B)`[NiCl_4]^(2-) and [NiCl_2(PPh_3)_2]-sp^3` containing two unpaired electrons `(d^8)` `[NiCl(PPh_3)_3]-sp^3` containing one unpaired electron `(d^9)` (C )`[CuF_4]^(-)`-diamagnetic planar complex with `d^9` CONFIGURATION . `[Cu(CN)_4]^(3-)`-diamagnetic tetrahedral complex with `d^10` configuration. (D)`[Fe(CN)_6]^(4-)`-diamagnetic with +2 oxidation state of iron. `[Fe(H_2O)_5NO^(+)]` -paramagnetic with +1 oxidation state of iron. `[Fe(CN)_5NO^(+)]^(2-)`-diamagnetic with +2 oxidation state of iron.