A) \[{{d}_{{{x}^{2}}-{{y}^{2}}}},{{d}_{{{z}^{2}}}}\]
B) \[{{d}_{xz}},{{d}_{{{x}^{2}}-{{y}^{2}}}}\]
C) \[{{d}_{{{z}^{2}}.}}{{d}_{xz}}\]
D) \[{{d}_{xy}},{{d}_{yz}}\]
Correct Answer: A
Solution :
[a] Only those d orbitals whose lobes are directed along X, Y and Z directions hybridise with s and p orbitals. In other three, d orbitals namely \[{{d}_{xy}},{{d}_{yz}}\] and \[{{d}_{xz}}\] the lobes are at an angle of \[45{}^\circ \] from both axis, hence the extent of their overlap with s and p orbitals is much lesser than \[{{d}_{{{x}^{2}}-{{y}^{2}}}}\] and \[{{d}_{{{z}^{2}}}}\] orbitals.
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