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PPSC Chemistry Full Book Test MCQs With Answers
Question # 1
The IUPAC name of HCOOCH3 is.
Choose an answer
Methoxy methanol
Ethanoic acid
Methyl methanoate
Methoxy methane
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Question # 2
PCl5 is an example of hybridization
Choose an answer
d sp
3
d2 sp2
sp2
sp3
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Question # 3
An impure sample of camphor contaminated with sand, can be purified by
Choose an answer
Distillation
Sublimation
Steam distillation
None of the above
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Question # 4
For each value of l. the number of m velocity are.
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n
2
2l
(2l+1)
(n+1)
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Question # 5
The common temperature detecting device in DTA are.
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Thermocouples
Thermopiles
Thermistore
All
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Question # 6
Which of the following contains both covalent and ionic bond.
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CCl4
NH4Cl
CaCl2
H2O
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Question # 7
Photochemical among is related to pollution of
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Air
Water
Soil
All of the above
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Question # 8
In 1952 who popularized the use of CFT for inorganic chemist
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Bethe
Orge
Van Vleck
Werner
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Question # 9
Which of the following statement is true.
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Ferromagnetic separation is used to remove rion impurities from bauxite.
Aluminium is an amphoteric element which means that it can act as an oxidizing agent and as a reducing agent
Aluminium has a strong attinity for oxygen
Aluminothermic reactions are endothermic
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Question # 10
Which of the following method is used for the coventrating of ores.
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Gravity separation
Magnetic concentration
Fourth floatation
Electrostatic concentration
All
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Question # 11
Which of the following compounds is electrovalent in nature.
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SO2
ICI
KBr
CHI3
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Question # 12
Which of the following technique is based on deposition of the analyte at appropriate electrode by the passage of the electric current.
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Chromatography
Dialysis
Electrodeposition
Solvent extraction
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Question # 13
In Nano synthesis new unsual chemical reactions are due to.
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Non equilibrium system
Equilibrium system
Isothermal system
Adiabatic process
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Question # 14
Which of the following chemical strong oxidizing agent is used in COD test.
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KMnO4
H2SO4
CH3COOH
K2Cr2O7
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Question # 15
Nanoscience can be studied with the help of
Choose an answer
Quantum mechanics
Newtonain mechanics
Macro dynamics
Grophysics
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Question # 16
Petrol can be saved by
Choose an answer
Driving at a constant and moderate speed
Ensuring correct type pressure
Switching off the engine at traffic lights
All of these
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Question # 17
What is use of the addition of brine solution in the production of soap from castor oil and sodium hydroxide.
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To speed up the reaction
To lower the solubility of soap
To remove unreacted castor oil and sodium hydroxide
To increase the purity of the soap obtained.
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Question # 18
Not a Characteristic property of ceramic material
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High temperature stability
High mechanical strength
Low elongation
Low hardness
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Question # 19
Electron gas theory is able to explain
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Metallic lusture and optical properties
Malleability and ductility
High electrical and thermal conductivity
All of the above
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Question # 20
Which type of polymer the Nylon -06 is
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Polyamide
Polyester
Addition
Homopolymer
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Question # 21
Elements in the same vertical group of the periodical have same
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Number of electron
Atomic number
Number of valence elections
Electronic configuration
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Question # 22
Which of the following in not a characteristics of crystalline solids.
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Sharp melting point
Isotropic
Long range orderly arrangemnt
None of above
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Question # 23
The isotonic nucleotide X and Y have mass numbers 35 and 37 respectively if the atomic number of X is 17 the atomic number of Y will be.
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15
17
19
18
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Question # 24
During the last two centuries, the atmospheric CO2 contents are increased by
Choose an answer
15%
25%
35%
50%
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Question # 25
Transition metal possess
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Definite color
Catalytic power
Both A and B
None of above
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Question # 26
Which of of the following statement is not correct in respect of
Arrhenius concept.
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This concept is applicable only for aqueous systems.
Neutralization takes place in aqueous medium only
H+ ion concept remain as such in water
This concept is applicable for non aqueous system only.
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Question # 27
The expression of specific conductance is given by
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Ls= I/R , l/A
Ls = L I/A
Ls = I/L , A/l
LS = r l/A
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Question # 28
Al2Cl6 is an example of
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Ionic bond
Covalent bond
Co ordinate bond
Metallic bond
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Question # 29
What element constitutes the major component of most bronzes.
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Tin
Zinc
Carbon
Aluminum
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Question # 30
According to systematic nomenclature which hydrogen compound is sulphane.
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HF
Si H4
SF4
H2S
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Question # 31
All the member of group III A are metals except.
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B
Ai
Ga
In
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