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Timestamps:
0:00 Introduction
0.49 VSEPR Theory
3:02 Postulates of VSEPR Theory
15:16 Geometry VSEPR
21:55 Shape Vs Geometry
25:16 VSEPR theory:CO2
29:10 VSEPR theory:BCl3
31:27 VSEPR theory:SO2
42:07 VSEPR theory:PCl5
44:42 VSEPR theory:SF4
48:57 VSEPR theory:ClF3
52:06 VSEPR theory: SF6
53:30 VSEPR theory: BeF5
55:58 VSEPR theory:XeF4
58:02 VSEPR Merits
58:36 VSEPR DeMerits
Valence shell electron pair repulsion theory, or VSEPR theory, is a model used in chemistry to predict the geometry of individual molecules from the number of electron pairs surrounding their central atoms. The number of electron pairs in the valence shell of a central atom is determined after drawing the Lewis structure of the molecule, and expanding it to show all bonding groups and lone pairs of electrons. When there are two electron pairs surrounding the central atom, their mutual repulsion is minimal when they lie at opposite poles of the sphere. Therefore, the central atom is predicted to adopt a linear geometry. If there are 3 electron pairs surrounding the central atom, their repulsion is minimized by placing them at the vertices of an equilateral triangle centered on the atom. Therefore, the predicted geometry is trigonal. Likewise, for 4 electron pairs, the optimal arrangement is tetrahedral.In this video we will cover:-
1.Introduction to VSEPR Theory.
2.The main points of VSEPR Theory.
3.Geometry of molecules according to VSEPR Theory.
4.Difference between shape and geometry.
5. VSEPR theory Example 1:-CO2
6.Explaining VSEPR theory Example 2:-BCl3
7.Explaining VSEPR theory Example 3:-SO2
8.Explaining VSEPR theory Example 4:-PCl5
9.Explaining VSEPR theory Example 5:-SF4
10.Explaining VSEPR theory Example 6:-ClF3
11.Explaining VSEPR theory Example 7:-SF6
12.Explaining VSEPR theory Example 8:-BrF5
13.Explaining VSEPR theory Example 9:-XeF4
14.Significance of VSEPR theory.
15. De merits of VSEPR theory.
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