Explain the non linear shape of H 2 S and non planar shape of PCl3 using valence shell electron pair repulsion theory.

Question

Philoid · Accepted Answer

In H₂S, the Sulphur atom is surrounded by the four electron pairs (two bond pairs and two lone pairs).

These four electron pairs adopt tetrahedral geometry.

The repulsion between the lone pair electrons brings distortion in the shape of the H₂S.

Thus, H₂Sis not linear in shape.

In PCl₃, the phosphorous atom has one lone pair of electron and three bond pairs. The hybridization is sp³ i.e tetrahedral shape.

The presence of the lone pair brings distortion in the tetrahedral shape.

Thus, it is pyramidal in shape.

Explain the non linear shape of H2 S and non planar shape of PCl3 using valence shell electron pair repulsion theory.