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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
Calorie is equivalent to
Choose an answer
0.4184J
4.184J
418.4J
40.18J
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Question # 2
The number of moles of CO2 which contain 16g of oxygen
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0.25
1.00
1.50
0.50
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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
Total number of possible chain and positional isomers of butyl alcohol among alcohols are
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Four
Five
Two
Six
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Question # 5
A line parallel to x-axis is obtained when graph is drawn between
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Volume on abscissa & pressure on ordinate
Volume on abscissa & PV on ordinate at all conditions
Pressure on abscissa & PV on ordinate at constant temperature
None of these
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Question # 6
Mg(s) + 2HCI(aq). ------------ MgCl2(aq)+ H2(g)
Given that; Mg=21g and HCI=21g, the excess reactant is
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Mg
HCI
Both are in stoichiometric amounts
None of these
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Question # 7
The element which exhibits maximum catenation property is
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C
Pb
Ge
Sn
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Question # 8
The common oxidation number of halogens is
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-1
+1
-2
0
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Question # 9
Which polymerization is free radical mechanism based
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Addition
Condensation
Both a and b
None
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Question # 10
The reaction which is responsible for the production of electricity in the voltaic cell is
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Hydrolysis
Oxidation
Reduction
Redox
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Question # 11
An element from the given below exists as discrete small molecules in the solid state. Which is that?
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Sodium
Silicon
lodine
lron
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Question # 12
Which of the following reacts with chloroform and base to form phenyl isocynaide?
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Nitrobenzene
Phenol
Chlorobenzene
Aniline
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Question # 13
Acetone reacts with HCN to form a cyanohydrin. It is an example of
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Electrophilic addition
Electrophilic substitution
Nucleophilic addition
Nucleophilic substitution
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Question # 14
Which is not property in ether:
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Very weak hydogen bonding
High b.p
Slightly soluble
Inflammable
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Question # 15
Group l-A elements react with water fastly than the reaction of group ll-A elements because
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l
A
elements are more soft then ll
A
l
A
elements are non-metals
l
A
elements have 1 electron in their outermost s-orbital and are strongly electropositive
l
A
elements make ionic bond
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Question # 16
How much of NaOH is required to neutralize 1500 cm
3
of 0.1 N HCl?
Choose an answer
60 g
6 g
4 g
40 g
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Question # 17
The oxide of beryllium is
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Acidic
Amphoteric
Superoxide
Basic
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Question # 18
Alkenes normally have ______ geometry
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Tetrachedral
Linear
Planer
None
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Question # 19
Choose an answer
0.12
0.50
0.25
4.00
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Question # 20
Which of the following elements is not stable:
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Xe
Ar.
Kr.
Li.
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Question # 21
Coal contains sulphur in it :
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1 - 3%
1 - 6%
1 - 9 %
1 - 12%
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Question # 22
Corrosion is basically a
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Altered reaction in presence of H
2
O
Electrochemical phenomenon
Interaction
Union between two light metals and a heavy metal
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