Chemistry short questions and branches witout applications

                     Chemistry 9^th

Short questions.

Qno:1

Define Chemistry?

Ans: The branch of science deals with the study of composition,structure,properties and reactions of matter is called chemistry.

Application of Chemistry : The development of chemical industry has also generated toxic wastes , contaminated water and polluted  air around us .

1.1  Branches of Chemistry

1.1   Physical Chemistry

Physical Chemistry is defined as the branch of chemistry that deals  with the relationship between the composition and physical properties of matter along with the changes in them.

1.1.2 Organic Chemistry

Organic Chemistry  is the study of covalent compounds of carbon and hydrogen  (hydrocarbon) and their derivatives .

1.1.3 Inorganic Chemistry

Inorganic Chemistry deals with the study of all elements and their compounds except those of compounds of carbon and hydrogen (hydrocarbons) and their derivatives.

1.1.4 Biochemistry

It is the branch of chemistry in which we study the structure,composition, and chemical reaction of substances found in living organisms.