Q. Interpret the non-linear shape of molecule and
non-planar shape of using valence shell electron pair
repulsion (VSEPR) theory. (Atomic number : H = 1,
P = 15, S = 16, Cl = 17).

 1429  198 IIT JEEIIT JEE 1998 Report Error

Solution:

In , S is -hybridised with two lone pairs of electrons
on it giving V-shaped (water like) shape. In , P is
-hybridised with one lone pair of electrons on it.
Therefore, is pyramidal in shape.