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Hassan
1.The mass of one molecule of water is:
A. 18 amu
B. 18 g
C. 18 mg
D. 18 amu
2.The molar mass of H2S04 is:
A. 98 g
B. 48 amu
C. 4.8 ¢
D. 98 g
3.Molar mass is usually expressed in grams. Which one of the following is molar mass of O2 in amu?
A. 32 amu
B. 53.2 x 1074 amu
C. 1.92 *10-% amu
D. 32 amu
4.How many numbers of moles are equivalent to 8 grams of CQ2?
A. 0.15
B. 0.18
C. 0.21
D. 0.15
5.Which one of the following pairs has the same number of ions?
A. 1 mole of NaCl and 1 mole of MgCly
B. 1/2 mole of NaCl and 1/2 mole of MgCl2
C. 1/2 mole of NaCl and 1/3 mole of MgCl,
D. 1 mole of NaCl and 1 mole of MgCly
6.Which one of the following pairs has the same mass?
A. 1 mole of CO and 1 mole of N2
B. 1 mole of CO and 1 mole of CO
C. 1 mole of O2 and 1 mole of N2
D. 1 mole of CO and 1 mole of N2
7.Which is an example of substance?
A. Carbon
B. Hydrogrn
C. Oxygen
D. Carbon
8.Biology bis classified as ___________ science.
A. Engineering
B. Physical
C. Natural
D. Engineering
9.The number of proton in an atom is called _________ number.
A. Molecule
B. Formula
C. Atomic
D. Molecule
10.The branch of chemistry which deals with qualitative & quantitative analysis of matter is :
A. Analytical
B. Nuclear
C. Biochemistry
D. Analytical
11.Which of the following can be separated by physical means?
A. Mixture
B. Element
C. Compound
D. Mixture
12.Elements naturally occurring.
A. 92
B. 118
C. 93
D. 92
13.105 elements were discovered by the year _?
A. 1984
B. 1974
C. 1086
D. 1984
14.How many numbers of moles are equivalent to 8 grams of CO2?
A. 0.15
B. 0.18
C. 0.21
D. 0.15
15.A _ is a pure substance is made up of two or more elements.
A. Mixture
B. Elements
C. Solution
D. Mixture
16.Elements were discovered in year 1800.
A. 34
B. 35
C. 36
D. 34
17.The right most position in the periodic table is occupied by:
A. Alkall metals
B. Alkaline earth metals 
C. Translation metals
D. Alkall metals
18.The repetition of a property after a certain interval is:
A. Periodicity
B. Properties
C. Periodicity of properties
D. Periodicity
19.The number of periods is:
A. 6
B. 7
C. 8
D. 6
20.Modern periodic table can be classified into ?
A. Elements
B. s, p, d, f blocks
C. Periods
D. Elements
21.4th and 5th period of the long form of periodic table are called
A. short periods
B. Normal periods
C. Long periods
D. short periods
22.The atomic number of potassium is:
A. 11
B. 15
C. 18
D. 11
23.Which one of the following halogen has lowest electronegative?
A. fluorine
B. chlorine
C. bromine
D. fluorine
24.The amount of energy given out when an electron is added to any atom is called:
A. lattice energy
B. ionization energy
C. electronegative
D. lattice energy
25.Which of following does not belong to p-block?
A. IIIA
B. IVA
C. VA
D. IIIA
26.Considering the electronic configuration of atoms which atom with the given atomic number will be the most stable one?
A. 6
B. 8
C. 10
D. 6
27.How many covalent bond does C2H2 molecule have?
A. two
B. three
C. four
D. two
28.Ionic compound are ________________ in water.
A. insoluble
B. Soluble
C. Covalent
D. insoluble
29.Which molecule has single covalent bond?
A. O2
B. N2
C. CI2
D. O2
30.Which has metallic bond?
A. H
B. Na
C. HCI
D. H
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