introduction of merits and demerits of chemistry

In spite of the above advantages, Mendeleev's periodic table suffered defects as follows: The position of hydrogen was not correctly defined. It was placed in group I although it resembles both the group I elements - the alkali metals and the group VII elements-the halogens, in their properties...

It has enabled us to explain the laws of chemical combination. Dalton was the first person to recognize a workable distinction between the ultimate particle of an element (atom) and that of a compound (molecule)..

Although the long form of the period table has been able to help in systematic studying the elements to a great extent, it has some minor defects: Hydrogen resembles both the alkali metals and halogens. But it has been placed with the alkalis. The lanthanides and actinides have not been place..

Organic chemistry is that branch of chemistry which deals with the study of compounds of carbon with hydrogen (hydrocarbons), and their derivatives. Presently about five million organic compounds are know..

Chemical reactions mostly take place in solutions. Solution chemistry plays a very significant role in chemistry. All chemical substances are made up of either polar units (called ions) or non-polar units. The activity of these entities is more evident and pronounced in solution..

It is well known that a base is a substance that combines with an acid to form salt and water only. In the equations given below, the metal oxides behave as bases. ..

Study of chemistry is important for the simple reason that, many chemicals find applications in almost all aspects of our daily lif..

Chemical reactions mostly take place in solutions. Solution chemistry plays a very significant role in chemistry. All chemical substances are made up of either polar units (called ions) or non-polar units. The activity of these entities is more evident and pronounced in so..

There are just 26 alphabets in English language, but the number of words are innumerable. You have studied about the 115 known elements and how they are classified for systematic and comprehensive study. Thousands of compounds are born by various chemical reactions involving these elements. In earl..

Isocyanides are structural isomers of alkyl cyanides. In these compounds, the -C N group is linked to the alkyl or aryl group through N atom. The group is -NC. Thus they have the general formula is The isocyanide group also has a triple bond but constitutes a dipolar species in which n..