PART 1

PART 2

What is Chemistry?

• It can also be defined as that branch of science that deals with the study of the composition, properties and interaction of matter.
• Chemistry is the science of atoms, molecules and their transformations.

Branches of Chemistry

1. Organic Chemistry:- This branch deals with study of carbon compounds especially hydrocarbons and their derivatives
2. 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 founda in the Earth’s crust.
3. 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.
4. Industrial Chemistry:- The chemistry involved in industrial processes is studies under this branch.
5. Analytical Chemistry:- This branch deals with the qualitative and quantitative analysis of various substances.
6. Biochemistry:- This branch deals with the chemical changes going on in the bodies of living organisms; plants and animals.
7. Nuclear Chemistry:- Nuclear reactions, such as nuclear fission, nuclear fusion, transmutation processes etc. are studied under this branch.

Knowledge of chemistry helps us to know:-

1. The properties of different substances like diamond, coal, plastics etc.
2. In preparation of soaps like liquid or powder.
3. The fabrics, plastic toys, paper, pencil, eraser, sugar cubes, petrol or diesel etc.
4. In the manufacture of different types of fertilizers, pesticides and medicines.

Chemistry helps us to answer the following questions:-

• To count the number of atoms and molecules in a given mass of matter?
• How to see the atoms and molecules?

Advantages of studying chemistry

1. With a better understanding of chemical principles it has now become possible to design and synthesise new materials having specific magnetic, electric and optical properties.
2. Safer alternatives to environmentally hazardous refrigerants like CFCs (chlorofluorocarbons), responsible for ozone depletion in the stratosphere, have been successfully synthesised.

Problems which can be tackled with the study of chemistry:-

1. Management of Green House gases like methane, carbon dioxide etc.
2. Understanding of bio-chemical processes, use of enzymes for large-scale production of chemicals and synthesis of new exotic materials are some of the intellectual challenges for the future generation of chemists.
3. Understanding of bio-chemical processes, use of enzymes for large-scale production of chemicals.

Question may be asked on this topic.

Q.1: Define Chemistry and It’s Branch?

Q.2: How can we use chemistry in our day to day life?

Q.3: What are the advantages to learn chemisty?