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Orbital Diagrams

Though the fi...

Question

Though the five d-orbits are degenerate, the first four d-orbitals are similar to each other in shape whereas the fifth d-orbital is different from others. What is the name of the fifth orbital?

A

d_{x^{2} - y^{2}}

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B

d_{z}^{2}

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C

d_{x z}

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D

d_{x y}

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Solution

The correct option is B $d_{z}^{2}$
The five d-orbitals are $d_{x y}, d_{y z}, d_{z x}, d_{x^{2} - y^{2}}, d_{Z^{2}}$
and have shapes as given in the figure. It is clear that $d_{Z^{2}}$ -orbital has one lobe along z-axis and donut-shape electron ring while all other d-orbitals have two dumbells.

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Similar questions

Q. The five d-orbitals are designated as

d_{x y}, d_{y z}, d_{x z}, d_{x^{2} - y^{2}}

d_{z^{2}}

. Choose the correct statement from the given options.

Q. When hybridisation involving

d

-orbitals is considered all the five

d

-orbitals are not degenerate, rather

d_{x^{2} - y^{2}}, d_{z}^{2}

d_{x y}

d_{y z}

d_{z x}

form two different sets of orbitals and orbitals of appropriate set are involved in the hybridisation.

Molecule has trigonal bipyramidal geometry and

s p^{3} d

d

-orbitals involved is:

3 d_{z}

, orbital is spherically symmetrical. Reason: The shapes of all five d-orbitals are similar to each other.

Q. Find the number of non-bonding molecular orbital from the following set if z is the internuclear axis :

d_{y z}

d_{z^{2}}, d_{y z}

d_{x z}, d_{x^{2} - y^{2}}

d_{x y}, d_{x z}

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Q. Consider a hypothetical atom where

p_{x}, p_{y}, p_{z}, d_{x y}, d_{x z}, d_{y z} a n d d x^{2} - y^{2}

orbital are present for principal quantum number n= 3.
Find the number of other orbitals whose lobes are fully present in the nodal plane of

p_{x}

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