NEET 2016 Phase 2 · ChemistryPrevious Year Question

Which of the following pairs of $d$ -orbitals will have electron density along the axes?

Answer: (C) $d_{z^{2}}$ , $d_{x^{2} - y^{2}}$ . \textbf{Answer:} (C) $d_{z^{2}}$ , $d_{x^{2} - y^{2}}$ \textbf{Solution:} $d_{z^{2}}$ and $d_{x^{2} - y^{2}}$ form the $e_{g}$ set, whose lobes point along the cartesian axes, while $d_{x y}$ , $d_{y z}$ , $d_{x z}$ (the $t_{2 g}$ set) have lobes lying between the axes.

A. $d_{z^{2}}$ , $d_{x z}$
B. $d_{x z}$ , $d_{y z}$
C. $d_{z^{2}}$ , $d_{x^{2} - y^{2}}$ ✓
D. $d_{x y}$ , $d_{x^{2} - y^{2}}$

Correct Answer

Solution & Explanation

\textbf{Answer:} (C) $d_{z^{2}}$ , $d_{x^{2} - y^{2}}$ \textbf{Solution:} $d_{z^{2}}$ and $d_{x^{2} - y^{2}}$ form the $e_{g}$ set, whose lobes point along the cartesian axes, while $d_{x y}$ , $d_{y z}$ , $d_{x z}$ (the $t_{2 g}$ set) have lobes lying between the axes.

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Which of the following pairs of d-orbitals will have electron density along the axes?

Solution & Explanation

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Which of the following pairs of $d$ -orbitals will have electron density along the axes?