This video lecture from Chemical Bonding (F.Sc. First Year Chemistry) covers the examples of the postulates of the Valence Shell Electron Pair repulsion theory with the help of different types of molecules that can exist. AB2, AB3 and AB4 types of molecules along with the effect of the lone and bond pairs on their geometry are discussed. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.