BY CHETAN SHARMA M.Sc (CHEMISTRY, B.Ed) (9041049588) CONTACT FOR ONLINE COACHING
,CHEMISTRY SOME BASIC CONCEPTS OF CHEMISTRY
SOME BASIC CONCEPTS OF CHEMISTRY
Introduction:
Chemistry is the science of molecules and their transformations which deals with the study of
matter, its composition, the changes that matter undergoes and the relation between changes in
composition and changes in energy. Chemistry plays an important role in meeting human needs
for food, health care products.
Branches of Chemistry:
Organic Chemistry- This branch deals with study of carbon compounds especially
hydrocarbons and their derivatives.
Inorganic Chemistry- This branch deals with the study of compounds of all other elements
except carbon. It largely concerns itself with the study of minerals found in the Earth's
crust.
Physical Chemistry- The explanation of fundamental principles governing various chemical
phenomena is the main concern of this branch. It is basically concerned with laws and
theories of the different branches of chemistry.
Industrial Chemistry- The chemistry involved in industrial processes is studied under this
branch. Analytical Chemistry-This branch deals with the qualitative and quantitative
analysis of various substances.
Biochemistry- This branch deals with the chemical changes going on in the bodies of living
organisms; plants and animals.
Nuclear Chemistry- Nuclear reactions, such as nuclear fission, nuclear fusion,
transmutation processes etc. are studied under this branch.
Importance of Chemistry:
Chemistry plays a central role in science and is often intertwined with other branches of science.
Principles of chemistry are applicable in diverse areas, such as weather patterns, functioning of
brain and operation of a computer, production in chemical industries, manufacturing fertilisers,
alkalis, acids, salts, dyes, polymers, drugs, soaps, detergents, metals, alloys, etc., including new
material.
BY CHETAN SHARMA M.Sc (CHEMISTRY, B.Ed) (9041049588) CONTACT FOR ONLINE COACHING
, CHEMISTRY SOME BASIC CONCEPTS OF CHEMISTRY
Chemistry contributes in a big way to the national economy. It also plays an important role in
meeting human needs for food, healthcare products and other material aimed at improving the
quality of life.
Matter
Matter is any thing that occupies space, has mass, offer resistance and can be perceived of
directly by our senses. For example, book, pen, pencil, water, air, all living beings, etc.
Element
Element is the purest form of matter. It is made up of only one type of atoms, ex.- carbon, iron,
copper, oxygen etc.
Compound
Compound is the substance which is made up of two or more elements combined together in a
fixed ratio by their weight e.g., carbon dioxide.
Mixture
Mixture is the substance which is made up of two or more substances in any ratio. e.g.,
Sugar + Water, Sodium Chloride + Water, Sand + Water
On the basis of composition, mixtures are of following type:
BY CHETAN SHARMA M.Sc (CHEMISTRY, B.Ed) (9041049588) CONTACT FOR ONLINE COACHING
,CHEMISTRY SOME BASIC CONCEPTS OF CHEMISTRY
SOME BASIC CONCEPTS OF CHEMISTRY
Introduction:
Chemistry is the science of molecules and their transformations which deals with the study of
matter, its composition, the changes that matter undergoes and the relation between changes in
composition and changes in energy. Chemistry plays an important role in meeting human needs
for food, health care products.
Branches of Chemistry:
Organic Chemistry- This branch deals with study of carbon compounds especially
hydrocarbons and their derivatives.
Inorganic Chemistry- This branch deals with the study of compounds of all other elements
except carbon. It largely concerns itself with the study of minerals found in the Earth's
crust.
Physical Chemistry- The explanation of fundamental principles governing various chemical
phenomena is the main concern of this branch. It is basically concerned with laws and
theories of the different branches of chemistry.
Industrial Chemistry- The chemistry involved in industrial processes is studied under this
branch. Analytical Chemistry-This branch deals with the qualitative and quantitative
analysis of various substances.
Biochemistry- This branch deals with the chemical changes going on in the bodies of living
organisms; plants and animals.
Nuclear Chemistry- Nuclear reactions, such as nuclear fission, nuclear fusion,
transmutation processes etc. are studied under this branch.
Importance of Chemistry:
Chemistry plays a central role in science and is often intertwined with other branches of science.
Principles of chemistry are applicable in diverse areas, such as weather patterns, functioning of
brain and operation of a computer, production in chemical industries, manufacturing fertilisers,
alkalis, acids, salts, dyes, polymers, drugs, soaps, detergents, metals, alloys, etc., including new
material.
BY CHETAN SHARMA M.Sc (CHEMISTRY, B.Ed) (9041049588) CONTACT FOR ONLINE COACHING
, CHEMISTRY SOME BASIC CONCEPTS OF CHEMISTRY
Chemistry contributes in a big way to the national economy. It also plays an important role in
meeting human needs for food, healthcare products and other material aimed at improving the
quality of life.
Matter
Matter is any thing that occupies space, has mass, offer resistance and can be perceived of
directly by our senses. For example, book, pen, pencil, water, air, all living beings, etc.
Element
Element is the purest form of matter. It is made up of only one type of atoms, ex.- carbon, iron,
copper, oxygen etc.
Compound
Compound is the substance which is made up of two or more elements combined together in a
fixed ratio by their weight e.g., carbon dioxide.
Mixture
Mixture is the substance which is made up of two or more substances in any ratio. e.g.,
Sugar + Water, Sodium Chloride + Water, Sand + Water
On the basis of composition, mixtures are of following type:
BY CHETAN SHARMA M.Sc (CHEMISTRY, B.Ed) (9041049588) CONTACT FOR ONLINE COACHING
