Which of the following sequences of hybridisa | vedclass

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Question

$(D)$ $A: [NiCl_4]^{2-}, Ni^{2+}(3d^8)$, weak field ligand, $sp^3$ hybridization, tetrahedral geometry, paramagnetic (two unpaired electrons). Correct

Vedclass · Accepted Answer

$A, B$ and $D$ only

Vedclass · Answer

$(D)$ $A: [NiCl_4]^{2-}, Ni^{2+}(3d^8)$, weak field ligand, $sp^3$ hybridization, tetrahedral geometry, paramagnetic (two unpaired electrons). Correct.
$B: [Ni(NH_3)_6]^{2+}, Ni^{2+}(3d^8)$, weak field ligand, $sp^3d^2$ hybridization, octahedral geometry, paramagnetic (two unpaired electrons). Correct.
$C: [Ni(CO)_4], Ni^0(3d^8 4s^2)$, strong field ligand $(CO)$, $sp^3$ hybridization, tetrahedral geometry, diamagnetic (all electrons paired). Incorrect (given as paramagnetic).
$D: [Ni(CN)_4]^{2-}, Ni^{2+}(3d^8)$, strong field ligand $(CN^-)$, $dsp^2$ hybridization, square planar geometry, diamagnetic (all electrons paired). Correct.
Thus, the correct sequences are $A, B$, and $D$.

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