Q20 / 150 · MHT CET 2025 (25 Apr Shift 1) · Chemistry

Which from following d-orbitals has different shape as compared with others?

  • A
    $\mathrm{d} x \mathrm{y}$
  • B
    $\mathrm{d} y \mathrm{z}$
  • C
    $\mathrm{d} x \mathrm{z}$
  • Correct answer
    D
    $\mathrm{dz}^2$

Solution

The five $d$-orbitals are designated as $d_{xy}$, $d_{yz}$, $d_{xz}$, $d_{x^2-y^2}$, and $d_{z^2}$.

Orbitals $d_{xy}$, $d_{yz}$, and $d_{xz}$ all exhibit the characteristic cloverleaf shape, with lobes oriented between their respective axes.

Orbital $d_{z^2}$ possesses a distinct geometry, featuring two primary lobes aligned along the $z$-axis and a toroidal region in the $xy$-plane.

Consequently, $d_{z^2}$ is structurally dissimilar to the other three orbitals.

The orbital with a different shape is $\boxed{D}$.

Hence, the correct answer is option: 'D'.

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