1. AL-HUDA SCHOOL
Campus III (Boys Section)
Chapter 1 st
Introduction to Chemistry
1. ____________________ is the branch of science that deals with the properties
composition and structure of matter.
2. Chemistry deals with the changes involved in_____________.
3. Chemistry deals with the principles governing the changes which ______________may
undergo.
4. Chemistry is a______________ word.
5. The development of chemistry can be divided into Greek Period, ______________period
and modern Period.
6. The development of chemistry is divided into ___________periods.
7. Greek___________ introduced the concept of element atoms shapes of atom and
chemical composition.
8. Greek believed that _________ element combined to form all things.
9. Greek believed that fire air water and __________ combined to form all things.
10. According to Greek concept ___________was hot and dry.
11. Greek believed that ____________ was dry and cold.
12. ______________introduced the enamelling of Pottery.
13. Aristotle Plato and Democritus belong to the ___________period of chemistry.
14. Muslim period of chemistry is also known as Period of ____________.
15. _______________scientists introduced scientific method and experimentations.
16. The educational contribution and scientific discoveries of the Muslims provided sound
foundation for the __________science.
17. _________________is generally known as the father of Al-chem.
18. _________________invented experimental methods for the preparation of nitric acid
hydrochloric acid and sulphuric acid.
19. Jabir Ibn Haiyan developed methods for the extraction of ______________.
20. __________________ developed method of dyeing cloths.
21. __________________introduced experimental investigation into Al-Chemy.
22. __________________major practical achievement was the discovery of minerals and
other acids.
23. Kitab al kimya was written by __________________.
24. Kitab al Sabeen was written by _________________.
25. Jabir ibn hayan was the student of __________________.
26. _____________ gave the metallic concept of sulphur and mercury.
27. According to Jabir ibn hayan the difference in metals is due to the difference in the
amount of sulphur and ____________.
28. _______________ extracted arsenic and antimony from their sulphides.
29. Jabir ibn hayan discovered the method of preparing varnish from ____________.
30. _________________ used varnish to prevent rusting of iron.
31. ________________ developed glass industry and water proofing of cloth.
32. Jabir ibn hayan prepared concentrated acetic acid by concentration of __________.
33. Jabir ibn hayan developed the process of golden script writing with ___________.
34. Jabir ibn hayan major contribution in chemistry is the discovery of nitric acid and
____________ acid.
35. Jabir ibn hayan prepared _____________ (royal water) to dissolve gold.
36. ___________was a physician, alchemist philosopher and an expert surgeon.
37. Al razi was the first who use _________ as Anaesthesia.
38. ____________ divided the substance into living and non living.
39. Al-Razi prepared ______________ by fermentation.
40. As a chemist Al razi was the first to produced _____________acid together with some
other acid.
41. Kitab al Asrar was written by _______________.
42. Kitab___________ deals with the preparation of chemical material and their utilization.
43. ___________________ determined the different specific gravities of materials.

2. 44. Al-Beruni worked on ____________ precious stones and metals determined their specific
gravity.
45. Bu Ali sina studied the properties of _____________.
46. In the opinion of Al-kindi it was_____________ to convert one metal to another metal.
47. _______________ used the process of distillation for getting ammonia from animal urine.
48. ________________ differentiated sodium carbonate from potassium carbonate.
49. ______________was familiar with arsenic oxide cupric oxide and antimony.
50. Robert Boyle described affectionately as the father of __________ chemistry.
51. Robert Boyle is considered as the founder of ________ chemistry.
52. ______________was the 1st to put forward the idea that the chemistry should be
regarded as a systematic investigation of nature with the sole aim of promoting knowledge.
53. _____________definition of element is quite near to the modern definition of element.
54. ___________made the study of Carbon dioxide.
55. ____________ discovered Oxygen, sulphur dioxide and hydrogen chloride.
56. ____________discovered chlorine.
57. ____________discovered hydrogen.
58. _____________ discovered that oxygen is about 1/5 of air.
59. French chemist ____________ improved the chemical balance.
60. _______________prove that fire is produced by the combination of oxygen and with
combustible materials.
61. _____________ made a great stride in chemistry with the atomic theory of matter.
62. The idea of atoms and molecules and the concept of atomic weight were given by
____________.
63. Gay-Lussac a French chemist and physicist are known for his studies on the physical
properties of _________________.
64. Gay Lussac investigated the relationship between pressures of a ____________and its
temperature.
65. _____________ is well known for his hypothesis known as Avogadro Law.
66. Dulong with Petit discovered the Dulong Petit law states that the specific heat of an
element is ____________ proportional to its atomic weight.
67. ______________suggested the symbols of element and discovered the atomic weight of
many elements.
68. ______________ introduced the idea of Symbol formula and chemical equation to make
the study more systematic.
69. ______________ discovered the periodic arrangement of the element.
70. The ionic theory was input forward by ___________.
71. Law of electrolysis were put forward by ______________.
72. Michael Faraday studied the process of ____________in details.
73. In 1906 __________was awarded the Nobel Prize in physics for the research into
discharge of electricity in gases.
74. For the discovery of spontaneous ______________Becquerel was awarded half of the
Nobel Prize for physics in 1903.
75. Perrie and Marie Curie are best known for their pioneering work in the study of
___________.
76. ____________ is best known for devising the name alpha beta and gamma to classify
various forms of rays which were poorly understood at his time.
77. ___________detected alpha rays with both electric and magnetic field in 1903.
78. _____________was the first to establish the theory of the nuclear atom.
79. Rutherford discovered the half life of _______________elements.
80. Until 1828 it was thought that organic compounds could not be prepared in the laboratory
because a ____________force was needed for their formation.
81. Wohler rejected the concept of ____________ force.
82. Wohler prepared _____________ form inorganic matter.
83. Ostwald and Von Hoff performed experiments on____________.
84. Branch of physical chemistry came into existence as a result of work of Oswald and Hoff
on ____________.
85. ____________________Formulated many principles of converting solids into liquid and
into gases.

3. 86. _____________ for the 1st time studied energy changes during chemical reactions.
87. Madam Curie did valuable research in ______________.
88. There are ______________ significant reasons to study chemistry.
89. Chemistry played a significant role in the eradication of deadly disease by developing life
saving pharmaceuticals and chemical ___________.
90. ______________ is an intellectual enterprise a way of explaining our material world.
91. Crops are protected by using___________.
92. The production of artificial _________has brought a revolution in clothing.
93. The ___________ air has adverse effect on human health.
94. It is our responsibility to ____________ the level of pollution by utilizing our knowledge of
chemistry.
95. PVC bleaching agent disinfectants solvents pesticides refrigerant and flame retardant are
the products of ____________.
96. Water supplies are treated with ______________ which kills pathogenic organisms.
97. Cholera typhoid fever dysentery and other water borne diseases eliminated with
_____________ pathogenic organisms.
98. ________________is a branch of chemistry that deals with the law and the principles
governing the combination of atoms and molecules in chemical reactions.
99. _____________chemistry is combined science of physics and chemistry.
100. _____________ Chemistry explains the laws and principles related to the combination of
atoms in molecules.
101. ________________chemistry explains the theories and models related to the structure of
atom.
102. ____________chemistry functions to provide molecular level interpretations of observed
macroscopic phenomenon.
103. _______________ Chemistry is a branch of chemistry that deals with carbon molecule
with the exception of Co2 CO metal carbonates bicarbonates and carbides.
104. ____________chemistry is the scientific study of structure, properties, composition
reactions and synthesis of organic compound.
105. ___________compounds are generally composed of carbon and hydrogen.
106. ______________chemistry is the chemistry of hydrocarbons and their derivatives.
107. _____________ Chemistry is essential in biological and medical fields.
108. _____________ Chemistry provides scientific study of synthesis of organic compounds.
109. __________________ Chemistry is the branch of chemistry that deals with the chemistry
of element and their compounds generally obtained from non living organism from minerals.
110. ___________chemistry is the branch of chemistry that deals with the study of the method
and technique involved to determine the kind quality and quantity of various components in a
given substances.
111. _____________chemistry is important to understand the composition of compounds.
112. _____________chemistry helps to understand the quality of the product.
113. ______________chemistry 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.
114. ______________chemistry is the backbone of medical sciences.
115. ______________ Chemistry is the branch of chemistry that deals with the study of
different chemical process involved in the chemical industries for the manufacture of synthetic
products like glass, paper, soda ash, fertilizers.
116. _____________chemistry helps us in the manufacturing of the industrial products and
there uses.
117. ______________chemistry provides information about general method which is used in
industries.
118. ______________ Chemistry provides information about the raw materials for the
manufacturing of certain industrial products.
119. _____________chemistry is the branch of chemistry that deals with the study of changes
occurring in the nuclei of the atoms accompanied by the emission of invisible radiations,
120. _____________chemistry provides us radio isotopes for the treatment of many diseases
such as cancer.
121. ____________chemistry give atomic energy for the benefits of mankind.

4. 122. ____________chemistry give information about the composition nature and properties of
nucleus.
123. _______________chemistry is the branch of chemistry that deals with the study of the
interaction of chemical materials and their effects on the environment of animals and plants.
124. Personal hygiene pollution and health hazards are important areas of
_________________chemistry.
125. ____________ Chemistry tells about the environment compositions.
126. ______________chemistry tells us that how one can protect its environment from
environmental hazards.
127. _______________chemistry tells about the factors which causes environmental pollution.
128. _____________ Chemistry is the branch off chemistry that deals specially with the study
of polymerization and the product obtained through the process of polymerization.
129. _________________chemistry provides knowledge about the polymerization.
130. _________________ Chemistry gives knowledge about the properties and uses of
different polymers.
131. The way to perform experiments makes observation and calculates and deduces the
result in science is known as ______________ method.
132. A specific method used to search for truth is known as ______________.
133. Scientific _____________is based on observation hypothesis experiment theory
prediction and law.
134. Study and collection of data about natural processes and scientific is called
______________.
135. _________________ is basic tool to go forth for elaborating a phenomenon.
136. __________________is a statement that may be possible answer of the problem.
137. A hypothesis is an intelligent scientific____________.
138. On the basis of the data collected through observation or experimentation we can develop
a ________________.
139. A trail idea is called_______________.
140. Experiment is an organized process which is used to test the truth of the
______________.
141. Experiment explains that _________________is true or not.
142. ________________is verified result of hypothesis
143. _________________is obtained with the help of careful experimentations.
144. When the hypothesis is supported by a large amount of different types of observation and
experiments then it becomes a ____________.
145. Scientifically acceptable idea or principles to explain the phenomenon is called
a______________.
146. Fore cast made after careful analysis of a theory is called_____________.
147. If experimental result is in accordance with to prediction then theory becomes a
_______________.
148. A theory which is tested again and again and found to fit the facts and from which valid
predictions may be made is known as __________.
149. The act of nothing and recording something such as a phenomenon with instruments is
called _______________.
150. _______________means watching something and taking note of anything it does.
151. _______________is a statement of a possible explanation for some natural
phenomenon.
152. A test under control conditions that is made to demonstrate a known truth examine the
validity of a hypothesis or determine the efficiency of something previously untried is
called_____________.
153. A set of statements or principles devised to explain a group of facts or phenomena is
called _______________.
154. The process of scientific discoveries is a _______________process.
155. The basic tool of ____________ for a man is his own five senses.
156. When five senses of man fail man made equipment is used for ____________.
157. ____________ is used for observing minute objects.
158. Thermometer is used for accurate measurement of _______________.
159. Sensitive chemical balance is used for finding the ____________ of very light objects.

5. 160. Information acquired through careful observation is called _____________.
161. The accepted hypothesis takes the form of a ____________.
162. A theory when repeatedly gives the same results after experimentations and offers
correct explanation of the scientific facts, it is then becomes____________.
163. A law or principles is never rejected until or unless new or contrary information is given on
the basis of_________________.
164. Occasionally a hypothesis may become a law without any ______________.
165. Avogadro _________________ becomes law without any experimentation.
166. A scientific _______________is an integrated actively which is performed with specially
designed instrument to get the required information.