This video lecture from Carboxylic Acids (F.Sc. second year Chemistry) covers the preparation of carboxylic acids from alkane nitriles or cyano alkanes. The cyanide group behaves similar to carbonyl group and gives Nucleophilic addition reactions. Hydrolysis of a nitriles hence gives a carboxylic acid with a higher number of carbon atom (since carbon of cyanide turns into that of carboxyl group). The detailed mechanism is explained in the lecture. 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.