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Online Tests
Chemistry 9th Class English Medium Online Test MCQs With Answers
Question # 1
H2O is what type of molecules it is:
Choose an answer
Manoatomic
Polyatomic
Pentaatomic
Nil
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Question # 2
The oxidation number of chromium in K
2
Cr
2
O
7
is:
Choose an answer
+2
+6
+7
+14
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Question # 3
Which one of the following is the weakest force among the atom?
Choose an answer
ionic force
metallic force
intermolecular force
covalent force
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Question # 4
Modern periodic table can be classified into ________________.
Choose an answer
Elements
s, p, d, f blocks
Periods
ROWS
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Question # 5
In common, a solution has ___________ components.
Choose an answer
1
2
3
4
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Question # 6
The repetition of a property after a certain interval is:
Choose an answer
Periodicity
Properties
Periodicity of properties
None
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Question # 7
Gases produced in Nelson's cell are:
Choose an answer
H
2
and O
2
H
2
and CI
2
H
2
and N
2
CI
2
and O
2
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Question # 8
Atoms form chemical bonds to attain the electronic configuration of
Choose an answer
Halogens
Noble gases
Alkali metals
Alkaline earthmetals
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Question # 9
The practical unit of concentration is
Choose an answer
%v/v
%v/m
%m/m
M
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Question # 10
The mathematical formula of Boyle's law is:
Choose an answer
PV = k
PT = k
V = kT
T = Vk
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Question # 11
All ionic compound are ________________ at room temperature.
Choose an answer
Liquid
Solids
Gas
Plasma
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Question # 12
All electrolytes are:
Choose an answer
Conductor
Insulator
Semi conductor
Nil
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Question # 13
Which is a polar molecule?
Choose an answer
HCI
H
2
CI
2
O
2
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