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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
An organic compound made from oxidation of ethanol is
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Formic acid
Acetic acid
Malonic acid
Citric acid
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Question # 2
DDT is a:
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Fungicide
Insecticide
Herbicide
All
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Question # 3
The instrument that is used to measure the pressure of a gas is called
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viscometer
photometer
barometer
stalagmometer
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Question # 4
No of unpaired electrons are maximum in
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V+3
Mn+2
Fe+3
Cr+3
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Question # 5
Which property of liquid is measured by polarimeter
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Conductance
Optical activity
Refractiye Indéx
Change in volume
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Question # 6
The basic difference between synthetic and natural fertilizer is in their
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raw material
crop application
usage
shapes
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Question # 7
There are _________ types of solids
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1
2
3
4
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Question # 8
Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water
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SO
2
NO
2
CO
a and b only
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Question # 9
All of the following are hydroxy containing amino acids except
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Serine
Threonine
Valine
Tyrosine
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Question # 10
Which of the following statement about ribose is incorrect
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Poly hydroxyl compound
It is an aldo sugar
Contain six carbon atoms
It exhibit optical activity
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Question # 11
The % age of nitrogen in ammonia is:
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80%
92%
90%
50%
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Question # 12
When fused PbBr2 is electrolyzed :
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Lead appears at anode.
Lead appears at cathode.
Bromine appears at cathode.
Lead appears at both electrodes.
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Question # 13
If carbon dioxide is bubbled through solution of Grignard's reagent in ether and the resultant product is reacted with hydrochloric acid, it gives
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An alkane
Al alcohol
A carboxylic acid
An aldehyde
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Question # 14
Which of the following is a constituent of nylon?
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Adipic acid
Styrene
Teflon
None of these
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Question # 15
Butanenitrile is formed by reaction of KCN with
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Propyl alcohol
Butyl chloride
Butyl alcohol
Propyl Chloride
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Question # 16
Which is not a method for solid waste management
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Landfill
Incinerating
Recycling
None of these
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Question # 17
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Diastase
Lipase
Inverters
Zymase
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Question # 18
Group VIB of transition elements contains
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Zn, Cd, Hg
Fe, Ru, Os
Cr, Mo, W
Mn, Te, Re
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Question # 19
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The heat released is enthalpy of neutralization
The heat released is enthalpy of atomization
The heat released is enthalpy of sublimation
The heat released is enthalpy of formation
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Question # 20
Sometimes a yellow turbidity appears while passing H
2
S gas even in the absence of II group radicals. This is because
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Sulphur is present in the mixture as impurity
IV group radicals are precipitated as sulphides
Of the oxidation of H
2
S gas by some acid radicals
III group radicals are precipitated as hydroxides
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Question # 21
Bronze is an alloy which contains
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60% cu
70% cu
80% cu
99% cu
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Question # 22
The strongest acid among the following aromatic compound is
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Ortho-nitrophenol
Para-chlorophenol
Para-nitrophenol
Meta-nitrophenol
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