Solution is a homogeneous mixture of two or more substances in same or different physical phases. The substances forming the solution are called components of the solution. On the basis of number of components a solution of two components is called...

Solids Solids are the chemical substances which are characterised by define shape and volume, rigidity, high density, low compressibility. The constituent particles (atoms, molecules or ions) are closely packed and held together by strong...

Introduction The branch of chemistry which deals with the identification of constituents of a substance and calculation of their amounts is called analytical chemistry. Branches of Analytical Chemistry The branches of analytical chemistry...

The branch of chemistry which deals with the study of composition of atomic nucleus, nuclear forces, nuclear reactions and radioactive materials, is called nuclear chemistry. Nucleons and Nuclear Forces Protons and neutrons which reside in the...

Hydrocarbons are the organic compounds containing carbon and hydrogen only, e.g., alkane, alkene and alkynes. Classification of Hydrocarbons Alkanes Alkanes are saturated, open chain hydrocarbons containing carbon-carbon single bonds....

Organic compounds extracted from a natural source or synthesized in the laboratory requires purification. Various methods are used for the purification and are based on the nature of the compound and the impurity present in it. The purity of a...

Environmental chemistry is the branch of chemistry which is concerned with the chemical phenomenon occurring in the environment. Classification of Environment 1.Atmosphere Atmosphere is Ii gaseous mixture of air that surrounds the earth....

In p-block elements, the last electron enters in the outermost p-orbital .. There are six groups of p-block elements in the Periodic Table, numbering from 13 to 18. Their valence shell electronic configuration is ns2np1 – 6 (except...

In the s-block elements the last electron enters in the s-orbital. As the s-orbital can accommodate only two electrons, two groups (1 and 2) belong to the s-block, The general electronic configuration of s-block elements is nsl or...

It was discovered by Henry Cavendish in 1766 by the action of dilute H2O4 on iron. It was named ‘inflammable air’, Lavoisier gave it the name hydrogen (Creek: Hydra = water, gennas = producer]. It occurs in free state as well as in...