This video lecture from Fundamental Principles of Organic Chemistry (F.Sc. second year Chemistry) covers the various forms of cracking whereby a higher alkane from fractional distillation of crude oil may be converted to more useful lower alkanes later processed into gasoline. It includes thermal cracking, catalytic cracking and steam cracking. 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.