Chapter 1

Introduction to Chemistry (Tungsten is not illuminating until given voltage; you are not beautiful until skilled)

Definitions

1. Chemistry: - It is the branch of science, which deals with the properties, composition, and the structure of matter. It also deals with the changes in matter and the principles, which govern these changes. OR

The scientific study of matter is called chemistry

2. Matter: - Anything having mass and volume is called matter.

3. Mass: - The quantity of matter contained in a body is called mass.

4. Volume: - Volume is the quantity of three dimensional space occupied by the matter. OR

Volume (also called capacity) is quantification of how much space an object occupies.

5. Space: - The free area between two material objects is called space.

6. Hypothesis: - It is the intelligent guess of the scientist about any phenomenon.

7. Phenomenon: - Any observable event is called phenomenon.

8. Theory: -The scientifically acceptable idea or principle to explain a phenomenon is called theory.9. Organic compounds:- Those compounds which contains carbon and hydrogen covalently bounded with each other are called organic compounds

10. Physical Chemistry: - The scientific study of the laws and the principles governing the combination of atoms and molecules in chemical reactions is called Physical Chemistry.11. Organic Chemistry: - The scientific study of organic compounds is called organic chemistry.12. Inorganic Chemistry: - The scientific study of inorganic compounds is called inorganic chemistry.13. Analytical Chemistry: - The scientific study of kind, quantity and quality of various components in a given substance is called analytical chemistry.14. Biochemistry: - The scientific study of the compounds and their reactions within the living organisms is called biochemistry.15. Industrial Chemistry: - The scientific study of the chemical industries and the synthetic products like glass, cement, soap etc over there is called industrial chemistry.16. Nuclear Chemistry: - The scientific study of the changes occurring in the nuclei of atoms, accompanied by the emission of invisible radiations is called nuclear chemistry.17. Environmental Chemistry: - The scientific study of interaction of chemical materials and their effect on the environment is called environmental chemistry18. Polymeric Chemistry: - The scientific study of polymerization and the products obtained through the process of polymerization such as plastics, synthetic fibers, papers etc is called polymeric chemistry. Multiple Choice Questions

1. Chemistry is the study of:a) matterb) energy

c) both a & bd) life

e) N.O.T

2. The Muslim period ranges from:

a) 347 428 B.Cb) 600 1600 A.D

c) 600 1000 A.Dd) 1600 to today

3. Known as the father of Al-Chemy.

a) Jabir bin Hayanb) Al Razi

c) Ibne Sinad) Al Beruni

4. Known as the father of Modern Chemistry

a) Jabir bin Hayanb) Robert Boyle

c) Mendeleefd) Cavendish

5. First used opium as anaesthesia.

a) Jabir Bin Hayanb) Al Razi

c) Ibne Sinad) Al Beruni

6. ____,____,and____discovered oxygen, chlorine and hydrogen respectively.

a) J. Black, J.Priesly, Scheele

b) Scheele, J. Priesly, Cavendish

c) Cavendish, Lavoiser, Scheele

d) J.Priesly, Scheele, Cavendish

7. Introduced first the idea of symbols:

a) Gay Lussacb) Mendeleef

c) Faradayd) J.J. Berzilius

8. Cholera, Typhoid, and Desentry are the dangerous disease transmitted through the impure water drinking.

a) trueb) false

9. Al Razi divided chemical substances on the basis of living and non-living origin.

a) true b) false

10. Biochemistry is the basis of medical sciences.

a) true b) false

11. PVC stands for poly vinyl carbon

a) true b) false

12. Fluorine is the best disinfectant:

a) true b) false

13. Periodic arrangement is the result of Mendeleefs work:

a) trueb) false Questions 14 19

Select from the terms below:

a) Organic Chemistryb) Inorganic chemistry

c) Biochemistryd) Analytical Chemistry

e) N.O.T

14. Wood is studied in:

15. Blood, urine, proteins are studied in:

16. Iron is studied in:

17. Hydrocarbons and their derivatives are studied in:

18. It is the study of polymerization

19. It deals with the determination of kind, quality and quantity of various components in a given substance.

20. A wise guess of scientists is called hypothesis

a) true

b) false

Answer Key

1A2C3A

4B5B6D

7B8A9A

10A11B12B

13A14A15C

16B17A18E

19D20A

Chemistry Def. & MCQs Dr. Sajid Ali Talpur