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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
The B.P of H2O at Murree Hills is
Choose an answer
99.8C
98°C
100C°
89°C
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Question # 2
Which of the following bonds is not present in NH4CL
Choose an answer
lonic bond
Covalent bond
Co-ordinate covalent bond
De-localized covalent bond
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Question # 3
According to charles law there will be a change in the volume of a given mass of a gas by 1/273 of its original volume at 0
°
C if the temperature of the gas is changed by
Choose an answer
10
°
1
°C
100
°C
2
°C
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Question # 4
Which type of motion is exhibited by gases?
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Vibrational
Transitional
Rotational
All of them
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Question # 5
The % age of nitrogen in ammonia is:
Choose an answer
80%
92%
90%
50%
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Question # 6
Decomposition of H2O is
Choose an answer
Endothermic reaction
Nuclear reaction
Exothermic reaction
Zero nuclear reaction
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Question # 7
Van der Waal's forces exist in
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Polar compounds
Non-polar
Covalent
All types of atoms and molecules
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Question # 8
Triple point of water is
Choose an answer
273 K
373 K
203 K
193 K
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Question # 9
Methyl cyanide, on boiling with mineral acids yield
Choose an answer
Acetic acid
Formic acid
Propanoie acid
Butanoic acid
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Question # 10
Soil remediation means
Choose an answer
to make it suitable for cultivation of crops
to make it acidic
to make it alkeline
to add manure into it
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Question # 11
Viscosity of a liquid is measured by
Choose an answer
barometer
thermometer
viscometer
manometer
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Question # 12
Neutrons was discovered by
Choose an answer
Mosely
Milliken
Chadwick
Ruherford
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Question # 13
Which of the following is not true for metalloids
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They are borderline elements that exhibit both metallic and non-metallic properties to some extent
They usually act as electron donors with non-metals and as electron acceptors with metals
Some of these elements are boron, silicon and germanium
They are good conductors of heat and electricity
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Question # 14
Which have better penetrating power
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Alpha rays
Beta rays
Gamma rays
X-rays
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Question # 15
Common names of carboxylic acids are given by then:
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Source
Person discovered
place
habit
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Question # 16
Enzymes, in the living systems
Choose an answer
Provide energy
Provide immunity
Transport oxygen
Catalyze biochemical processes
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Question # 17
which enzyme is not involved in the fermentation of starch ?
Choose an answer
Diastase
Zymase
Urease
Invertase
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Question # 18
Which more acidic?
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o-cresol
p-nitrophenol
phenol
m-cresol
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Question # 19
Coinage metals like Au, Pt, Ag and Cu are the least reactive metals and don't liberate H
2
gas when treated with acids because
Choose an answer
These have very high positive values of reduction potentials
These have very high negative values of reduction potentials
Their ionization potentials are lowest
Their reduction potentials are close to SHE
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Question # 20
When CO
2
is made to react with ethyl megnesium iodine, followed by hydrolysis, the product formed is:
Choose an answer
Propane
Propanoic acid
Propanal
Propanol
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Question # 21
Phenol gives ---------- Colour with neutral FeCl
3
solution
Choose an answer
Violet
Green
Red
Blue
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Question # 22
S-block elements consist of
Choose an answer
Alkali metals
Alkaline earth metals
Alkali and alkaline earth metals
None of these
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