This video lecture from Chemical Bonding (F.Sc. First Year Chemistry) covers the concept of covalent bond, the types of covalent, reason polarity, polar covalent bonds with examples, non polar covalent bonds with examples, effect of geometry of the molecule on the polarity and how carbon makes single, double and triple covalent bond. 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.