Ans : Chemistry :
Chemistry is the branch of science that deals with the properties , composition and structure of matter.
Chemistry also deals with the changes involved in the matter. It also deals with the principles governing the changes which matter may undergo.
Branches of Chemistry :
(a) Physical Chemistry :
It is the branch of chemistry that deals with the laws and the principles governing the combination of atoms and molecules in chemical reaction.
(b) Organic Chemistry :
It is the branch of chemistry that deal with carbon compounds with exception of CO2 , CO , metal carbonates , bicarbonates and carbides. Actually it is the chemistry of hydrocarbons and their derivatives.
(c) In-Organic Chemistry :
It is the branch of chemistry that deals with the chemistry of elements and their compounds generally obtained from non-living organisms i.e. from minerals.
(d) Analytical Chemistry :
It is the branch of chemistry that deals with the study of the methods and techniques involved to determine the kind , quality and quantity of various components in a given substance.
(e) Bio Chemistry :
It is the branch of chemistry that deals with the compounds of living organisms i.e. plants and animals and their metabolism in the living body.
(f) Industrial Chemistry :
It is the branch of chemistry that deals with the study of different chemical processes involved in the chemical industries for the manufacture of synthetic products like glass , cement , paper , soda ash , fertilizers , medicine etc.
(g) Nuclear Chemistry :
It is the branch of chemistry that deal with the study of changes occurring in the nuclei of atom accompanied by the emission of invisible radiations.
(h) Environmental Chemistry :
It is the branch of chemistry that deals with the study of interaction of chemical materials and their effect on the environment of animals and plants.
(i) Polymeric Chemistry :
It is the branch of chemistry that deals specially with the study of polymerization and the products obtained through the process of polymerization such as plastics , synthetic fibers , papers etc.