Explain the non linear shape of H2S and non planar shape of PCl3 using valence shell electron pair repulsion theory.

This is a Short Answer Type Questions as classified in NCERT Exemplar Ans: In the Lewis structure of PCl3, the phosphorus atom is surrounded by three bond pairs (chlorine atoms) and one lone pair. These four electron pairs are arranged in a tetrahedral geometry around the central phosphorus atom. Due to the presence of lone pair of electron on the phosphorus atom, PCl3 will have a distorted tetrahedral geometry. Thus, it will form a pyramidal shape and is non-linear in structure. In H2S, the central sulphur atom is surrounded by two bond pairs and two lone pairs of electrons. It can be said that these four electron pairs are arranged in a tetrahedral geometry. Due to the presence of two lone pairs on the central sulphur atom, the lone pair-bond pair repulsion happens and due to this the molecule H2S has a V-shaped geometry and is non-linear in structure.

Explain the non linear shape of H₂S and non planar shape of PCl₃ using valence shell electron pair repulsion theory.

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Vishal Baghel | Contributor-Level 10

8 months ago

This is a Short Answer Type Questions as classified in NCERT Exemplar

Ans: In the Lewis structure of PCl₃, the phosphorus atom is surrounded by three bond pairs (chlorine atoms) and one lone pair. These four electron pairs are arranged in a tetrahedral geometry around the central phosphorus atom. Due