MCQ
For the complexes showing the square pyramidal structure, the $d-$ orbital involved in the hybridisation is
- ✓$d_{x^2-y^2}$
- B$d_{z^2}$
- C$d_{xy}$
- D$d_{xz}$
When $d_{z^{2}}$ orbital is involved in the hybridization, the geometry is trigonal bipyramidal.
When $d_{x^{2}-y^{2}}$ orbital is involved in the hybridization, the geometry is square pyramidal.
Hence the correct option is A.
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Acetal $-$ Hemiacetal
$\begin{array}{|l|l|l|} \hline P_0\,\,(mmHg) & 250 & 300 \\ \hline t_{1/2}\,\,(minutes) & 135 & 112.5 \\ \hline \end{array}$
The order of reaction is -
$(I)$ Ionization energy $(II)$ Ionic radius
$(III)$ Bond energy of the $X_2$ molecule $(IV)$ Enthalpy of vaporisation