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Chemistry General Science Test Hard Mode MCQs With Answers
Question # 1
SO
2
and NO
2
pollution by increasing
Choose an answer
Alkalinity
Acidity
Neutrality
Buffer action
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Question # 2
The relative rate of diffusion of a gas (molecular wright - 128) as compared to oxygen is
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2 times
1/4
1/8
1/2
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Question # 3
The carbon atoms in calcium carbide are held by
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Ionic bonds
2 sigma bonds
2 covalent one co-ordinate bond
2 π and one σ
bond
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Question # 4
Which of the following fluorides does not exist?
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NF
5
PF
5
AsF
5
SbF
5
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Question # 5
Oleum is
Choose an answer
Castor oil
Oil of vitriol
Fuming of H
2
SO
4
None of them
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Question # 6
Which has largest first ionization energy?
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Li
Na
K
Rb
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Question # 7
Which of the following represents elements in order of increasing atomic size?
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I,Br,CI
Na,Mg,C
C,N,O
Li,Na,K
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Question # 8
Which of the following species participate in sulphonation of benzene ring?
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H
2
SO
4
HSO
-
3
SO
3
SO
-
2
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Question # 9
What quantity of limestone (CaCO
3
) on heating will give 56 kg of CaO?
Choose an answer
1000 kg
56 kg
44 kg
100kg
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Question # 10
Which of the following process is used to separate insoluble particles from liquids?
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Separation
Filtration
Crystallization
Condensation
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Question # 11
Heating a micture of sodium benzoate and soda lime gives
Choose an answer
Benzene
Methane
Sodium benzoate
Calcium benzoate
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Question # 12
The IUPAC name of the compound having the formula (CH
3
)
3
C - CH = CH
2
is
Choose an answer
1, 1-Dimethyl-3-butene
1, 1, 1-Trimethyl-3-propene
3, 3,-Dimethyl-1-butene
3, 3, 3,-Trimethyl-1-propene
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Question # 13
Which of the following is directly related to Qualitative analysis?
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Identification
Separation
Measurement
Calculation
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Question # 14
Which is true for an element R present in group 13 of the periodic table?
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It is a gas at room temperature
It has oxidation state of +4
It forms R
2
O
3
It forms RX
2
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Question # 15
Hydrolytic conversion of sucrose into glucose and fructose is known as
Choose an answer
Induction
Inversion
Insertion
Inhibition
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Question # 16
Magnesium keeps on burning in
Choose an answer
N
2
CO
2
N
2
O
N
2
as well as CO
2
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Question # 17
Inter molecular forces in solid hydrogen are
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Covalent forces
Van der Waal forces or London dispersion forces
Hydrogen bonds
All of these.
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Question # 18
Which of the following does not reflect the periodicity of elements?
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Bonding begaviour
Electronegativity
Ionisation potential
Neutron/proton ratio
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Question # 19
The structure of XeF6
Choose an answer
Distorted octahedral
Pyramidal
Tetrahedral
None of the above
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Question # 20
Which species represents the electrpohile in aromatic nitrotaion?
Choose an answer
NO
-
2
NO
+
2
NO2
NO
-
3
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