Proteins are probably the most complex materials produced in nature. The name protein in derived from the Greek word proteins, meaning 'of prime importance'. The name is well  chosen because proteins are the basic of protoplasm and are present in all living organisms. Without pr…

The development of modern has technology tremendous changes to our life-style in the last 30 years. One of most significant changes has been the gradual replacement of naturalaterial, such as wood, wool and cotton with man-made synthetic polymers. For better or worse, We are becoming a …

A colloid is a heterogeneous system in which one substances is dispersed (dispersed phase) as very fine particles in another substances called dispersion medium. The essential difference between a solution and a colloid is a that of particle size. While in a solution, the constituent pa…

Coordination Compounds are backbone of modern inorganic and bio-inorganic and bio-chimestry and chemical industry. In the previous Unit we learnt that transition metals form a large number of complex compounds in which the metal atoms and bound to a number of anions or neutral molecules…

The mostajortity of solid substances like high temperature superconductors, biocompatible plastics, silicon chips, etc, are destined to play an ever expanding role in future development of science. We are mostly surrounded by solid and we use them more often than luquid and gases. For d…