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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
Which pair of elements will have the same type of bonds between their atoms in the solid state?
Choose an answer
carbon and calcium
lithium and boron
aluminium and phosphorus
nitrogen and carbon
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Question # 2
Polymorphism is shown by AgNO3. Which one of the following options is true for AgNO3?
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Orthorhombic and rhombohedral
Cubic and orthorhombic
Cubic and tetragonal
Monoclinic and hexagonal
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Question # 3
Commonly used coagulants are ions of:
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Ferrous
Al
Cr
Ferric
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Question # 4
Some substance are good conductors of electricity in both the solid and liquid states. These substance are generally:
Choose an answer
molecular solids
ionic substances
metallic substances
covalent network solids
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Question # 5
Forms of waste products:
Choose an answer
Heat
Smoke
Solid
All of these
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Question # 6
1-chloropropane and 2.chlorpropane are isomers of each other, the type of isomerism in these two is called
Choose an answer
Cis-trans isomerisn
Position isomerism
Chain isomerism
Functional group isomerism
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Question # 7
A basic buffer solution can be prepared by mixing?
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Weak acid and its salt with strong base
Weak base and its salt with strong acid
Strong acid and its salt with weak base
Strong base and its salt with strong acid
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Question # 8
The heat of hydrogenation of most of the alkene is about
Choose an answer
120 kJ/mol
100 kJ/mol
140 kJ/mol
105 kJ/mol
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Question # 9
Ethanoic acid reacts with all of these to produce water except
Choose an answer
Ethanol
Sodium
Caustic soda
Sodium hydrogen carbonate
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Question # 10
Which one the following gases is ideal at -200
°C?
Choose an answer
N
2
He
both
none
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Question # 11
Covalent bond is
Choose an answer
A weak bond
A true chemical bond
A hydrogen bond
Responsible for secondary structure of protein
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Question # 12
Which of the following is the use of electrolysis?
Choose an answer
Eletrorefining
Electroplating
Both A and B
None of the above
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Question # 13
How many are the zones through which the charge passes in a rotary kiln?
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4
3
2
5
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Question # 14
Bronze is an alloy which contains
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60% cu
70% cu
80% cu
99% cu
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Question # 15
When copper is allowed to react with HNO
3
, the reaction is slow in the beginning, finally becomes very fast. It is due to the formation of an auto catalyst which is
Choose an answer
Cu(NO
3
)
2
CuO
O
2
HNO
2
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Question # 16
The total number of orbitals possible for the quantum number n is
Choose an answer
n
n
2
2n
2n
2
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Question # 17
One calorie is equal
Choose an answer
4.132 J
760 J
4.184 J
1 J
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Question # 18
Biodegradable pollutant is
Choose an answer
Plastic
Asbestos
Sewage
Mercury
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Question # 19
Coligative properties are the properties of
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Dilute solution which behave as nearly ideal solutions
Concentrated solutions which behave as nearly non-ideal solution
Both (i) and (ii)
Neither (i) and (ii)
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Question # 20
Li has the lowest reduction potential while the element with highest reduction potential is
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H
F
O
N
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Question # 21
A state function of the system which describes together the internal energy and the work done is called
Choose an answer
Enthaply
Internal energy
Work
Free energy
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Question # 22
Solutions containing relatively lower concentrations of solute are called :
Choose an answer
Concentrated solutions.
Lighter solutions.
Dilute solutions.
None of above.
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