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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
Which ion has maximum number of unpaired electrons in 3d subshell and shows maximum paramagnetic behavior?
Choose an answer
Cr+3
Ni+2
Co+2
Fe+3
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Question # 2
The value of oxidation number of chlorine in HCIOs is
Choose an answer
+7
+5
-1
+3
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Question # 3
The deviation of a real gas from ideal behaviour is maximum at
Choose an answer
-10.0
°C and 50 atm
-10
°C and 2 atm
100
°C and 2.0 atm
0
°C and 2 atm
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Question # 4
In order to determine ∆H (latt) of ionic compound which is correct relationship
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∆H latt. = ∆Hf - ∆Hx
∆H latt. = ∆Ha + ∆Hv
∆H latt. = ∆Hf + ∆Hx
∆H latt. = ∆Hf - ∆H sol.
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Question # 5
The most unsymmetrical one in crystal system is
Choose an answer
triclinic
Li, Na, K
monoclinic
hexagonal
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Question # 6
a hole used to dump the municipal wastes is called:
Choose an answer
landfill
effluents
leachate
inclneration
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Question # 7
During incineration temperature range of non-rotating chamber is
Choose an answer
900-1000C°
650-1100C°
950-1300C°
700-900C°
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Question # 8
Large molecule formed by combination of smaller units these smaller units are called:
Choose an answer
Polymers
Macromolecule
Micromolecule
a & b
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Question # 9
Which of these polymers is a synthetic polymer
Choose an answer
Animal fat
Strach
Cellulose
Polyester
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Question # 10
Elements of group ll-A are called
Choose an answer
f-block elements
s-block elements
p-block elements
d-block elements
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Question # 11
Dehydrogenase is an example of
Choose an answer
ligase
oxidoreductase
lyase
hydrolase
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Question # 12
Which one of the following has no units of its K
c
value
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Question # 13
The fibre which is made from vinylidine chloride polymer is called
Choose an answer
Rayon fibre
Azlon fibre
Acetate fibre
Saran fibre
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Question # 14
There are 20 amino acids found in protein which is not the property of these amino acids
Choose an answer
They are all
α
-amino acids
They are all optically active
They have high decomposition point
They are water soluble
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Question # 15
Which of the following species participate in sulphonation of benzene ring?
Choose an answer
H2SO4
HSO4
SO3
SO
-
2
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Question # 16
Fe
+3
and Mn
2+
are strong paramagnetic because the number of unpaired electrons in each is
Choose an answer
4
5
6
7
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Question # 17
The major reaction occurring in the engines of automobiles is
Choose an answer
Oxidation
Reducing
Combustion
Decomposition
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Question # 18
Choose an answer
Treatment with HCN followed by acid hydrolysis
Oxidation of acetaldehyde followed by basic hydrolysis
Treatment with HCN followed by reduction
Treatment with HCN followed by oxidation
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Question # 19
Increasing skin cancer and high mutation rate are due to
Choose an answer
Acid rain
Ozone depletion
CO pollution
CO
2
Pollution
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Question # 20
Heaviest particle is
Choose an answer
Meson
Neutron
Proton
Electron
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Question # 21
Reaction of Grignard's reagent with formaldehyde gives:
Choose an answer
pri-alcohol
sec-alcohol
ter-alcohol
carboxylic
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Question # 22
Coordination number of Pt in [Pt Cl(NO
2
) (NH
3
)]
2-
is
Choose an answer
2-
4
1
6
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