This video lecture from Periodic Classification of Elements and Periodicity (F.Sc. second year Chemistry) covers: Types of oxides.Classification on acidic/basic and amphoteric nature. Dependence of bond type on oxidation states of the element bonded with oxygen. Relationship with metals and non metals. Acid base neutralization reactions. Various Trends in groups and periods. 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.