Which of the following orbitals is non-directional?
The correct option is A s
s 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.