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Online Tests
Chemistry 9th Class English Medium Online Test MCQs With Answers
Question # 1
Which of the following is a heterogeneous mixture
Choose an answer
Concrete mixture
a solution of potassium nitrate in water
a solution of calcium hydroxide in water
Hot chocolate
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Question # 2
A covalent bond formed by two similar stoms is known as.
Choose an answer
Polar Covalent bond
Metallic bond
Double covalent bond
Non-polar covalent bond
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Question # 3
Predict which components of the amosphere react in the presence of lightening.
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N2 and H2O
O2 and H2O
N2 and O2
CO2 and O2
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Question # 4
Industrialy, ammonia is produced by which process.
Choose an answer
Halogenation
Solvay process
Haber Process
Hydrogenation
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Question # 5
Whcih element is presnet in 2nd period.
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Lithium
Beryllium
Boron
All of these
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Question # 6
How many electrons can be accommodated at the msot in the third shell of the elements.
Choose an answer
8
12
10
18
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Question # 7
Buckyballs also knowns as.
Choose an answer
Fullerenes
Graphite
Both a and b
None of these
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Question # 8
The structure of C atom in diamond is.
Choose an answer
Pentagonal
Triangle
Hexahedral
Tetrahedral
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Question # 9
At what temperature , rate of ammonia formation and decomposition is the highest.
Choose an answer
200
o
C
300
o
C
400
o
C
500
o
C
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Question # 10
In the formation of AlF
3
, aluminum atom loses........electrons.
Choose an answer
1
4
3
2
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Question # 11
Why the gas starts coming out when you open a can of fizzy drink.
Choose an answer
Because gteh solubiliyt of the gas increases
Because the gas is dissolved under pressure hence it comes out when pressur eis decreased
Becaue the gas is insoluble in water
Because the solubility of hte gas decreases at high pressure.
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Question # 12
Macroscopic propertues are properties that can be visualized by
Choose an answer
Telescope
The naked eye
Microscope
Electron microscope
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Question # 13
When new bonds ae formed, the energy is
Choose an answer
Consume
Remain same
Release
None of these
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