Some Basic Concepts of Chemistry
What is Chemistry :- It is a branch of science which deals with the study of the composition,structure and properties of matter along with the changes involved in matter. In Other words,chemistry is defined as the science of matter and its transformations.
Classification of chemistry :-Chemistry has been further classified into the following main different branches.
(I) Inorganic chemistry
(II) organic chemistry
(III) Physical chemistry
(IV) Analytic chemistry
(V) Industrial chemistry
(VI)Bio chemistry
(VII) Nuclear chemistry
(VII) Polymer chemistry
Inorganic chemistry:-It deals with the study of all the elements and their compounds expect the covalently bonded compounds of carbon.
Organic chemistry:-it deals with the study of the carbon compounds derived from living organism expect oxides of carbon,carbides, carbonates and bicarbonates.
# In other words organic chemistry is defined as the study of hydrocarbons and their derivatives.
Matter :-Matter is defined as anything that has definite mass and that occupies space.
Ex----Water,Air,wood,iron,gold etc.
Classification of Matter:- matter are classified into the following two categories.
(I) Homogeneous Matter
(III) Heterogeneous Matter
Homogeneous Matter :-
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Matter that has uniform composition and identical properties throughout the phase is called homogeneous matter.
It consists of only one phase.
Ex----Water,Sugar, oxygen, sulphur, copper etc.
Heterogeneous Matter :-
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Matter which is made of two or more components that are physically distinct is called heterogeneous matter. Itihaas neither uniform composition nor identically properties of two or more number of phases.
Ex:-Mixture of salt and water.
Mixture of water and benzene.
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