Chemistry - CHEMICAL BONDING Question with Solution | TestHub
In order to explain the shape and geometry of molecules. The valence bond theory was supplemented by the concept of Hybridization. This is a Hypothetical concept and has been introduced by Pauling and Slater. According to this concept any number of atomic orbitals of an atom which differ in energy slightly may mix with each other to form new orbitals called hybrid orbitals. The process of mixing or amalagamation of atomic orbitals of nearly same energy to produced a set of entirely new orbtials of equivalent energy is known as Hybridization.
The number of correct set are :
(I) , angular
(II) , linear
(III) , pyramidal
(IV) ; , trigonal
(V) , bent
(VI), octahedral
(VII) , tetrahedral
Answer:
Solution:
(I) H₂O: sp³, angular (CORRECT)
(II) H₂O: sp², linear ( INCORRECT)
(III) NH₃: sp², pyramidal (INCORRECT) (correct: sp³, pyramidal)
(IV) BF₃: sp³, trigonal (INCORRECT) (correct: sp², trigonal planar)
(V) SO₂: sp², bent (CORRECT)
(VI) PCl₆⁻: sp³d², octahedral (CORRECT)
(VII) SO₄²⁻: sp³, tetrahedral (CORRECT)
Hence, correct sets are (I), (V), (VI), (VII).