Question

# Which of the following orbitals is non-directional?

A
s
B
p
C
d
D
All of the above

Solution

## The correct option is A ss orbital is spherical, so it is non-directional in nature. p orbital is dumbbell shaped and has the directionality associated with it ( px , py , pz ). d orbitals are double dumbell shaped (except dz2, which has lobes in the z direction and high electron density ring in xy plane). d orbitals are also directional. The five d orbitals are  dxy, dyz, dzx,  dx2−y2, dz2.

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