Modern periodic law

Modern Periodic Law of element may be defined as the Physical and chemical properties of the elements are periodic functions of their atomic numbers. It means, when the elements are arranged in the order of their increasing atomic numbers, it is observed that the...

Synthetic detergents

A synthetic detergent is the sodium salt of sulphonic acid which has cleansing properties in water.                     Structure Of Molecule Of Detergent The structure of a synthetic detergent is similar to that of soaps. It consists of a long hydrocarbon...

Soaps and detergents

Detergents Any substance which has cleansing action in water is called a detergent. It is of two types: Soaps and Synthetic detergents Soaps Soaps are sodium or potassium salts of higher fatty acids such as oleic acid (C17H33COOH), stearic acid (C17H35COOH) and...

Examples of polymers

1) Rubber: Rubber occurs in nature as well as it is obtained by synthetic methods. Natural Rubber Natural rubber is obtained as latex from rubber trees. The monomer of natural rubber is isoprene. There may be as many as 11000 to 20000 isoprene units in a polymer chain...

Classification of polymers

Polymers can be classified in two ways as give below: Classification based on source of availability. Classification based on method of synthesis. 1. Classification based on source of availability According to this classification polymers are of two types: Natural...