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PPSC Chemistry Full Book Test MCQs With Answers
Question # 1
The common ligands can be arranged in order of their increasing splitting power to cause d-orbitals splitting. This series is called as.
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Electro-chemical
Spectro -chemical
Physico-chemical
Spectro -electrical
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Question # 2
The energy gap between two bands so large that it effectively prevents the promotion of electron from the lower to the higher band such energy gap all called.
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Ionization zone
Dissociation zone
Distinction zone
Forbidden zone
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Question # 3
The link between classical thermodynamics and quantum mechanics is prevented by
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Statiatical mechanics
Boltzmann law
Wave mechanics
Matrix mechanics
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Question # 4
The most stable carbonium ion is
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See butyl
n-butyl
Tert butyl
None of the above
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Question # 5
The main active contaminants of nuclear reactors are.
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Co- 60
Mn -54
Sr-60
All above
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Question # 6
Which of the following sulphide is yellow in colour.
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HgS
PbS
CdS
SnS
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Question # 7
The number of moles of solute dissolved in 1000 gram of the solvent is called
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Formality
Molality
Molarity
Mole fraction
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Question # 8
Are used as water repellents
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Carbides
Silicon
Silicones
Silicates
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Question # 9
Which name is associated with the rules which help in predicting the portability of anion.
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Soddy
Slater
Fajan
Linus pauling
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Question # 10
Which of the following has the bighest value.
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Transnational partition function
Rotational partition function
Vibrational partition function
Electronic partition function
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Question # 11
Which of the following statement is not true with respect to electrode potential.
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Feasibility of a chemicals reaction
Rate of chemical reaction
Nature of a chemical reaction
Free energy of a chemical reaction
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Question # 12
The units of coefficient of viscosity are.
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kg m-1 n-1
gm -1, s-1
kgm-1, min -1
None of the above
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Question # 13
A compound with an congruent melting point decomposes on heating into.
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A liquid of the same composition as the solid
A new solid phase and a solution with a compositional from that of the solid phase
A new solid phase and a solution with the same composition as that of the solid phase
A solution of fixed composition
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Question # 14
A combination of atomic orbitals produces a large number of closely special energy states brown as.
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Packet of energy
Band of energy
Botha a and b
None of the above
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Question # 15
The noble gases are found in the atmosphere to the extent of about some percent by volume.
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0.5%
1.0%
1.5%
2.0%
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Question # 16
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 # 17
A property which gradually increases on moving down group in the periodic table is
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Ionization enthalpy
Elemtronegativity
Electron affinity
atomic size
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Question # 18
Greeks and Romans had used nanoparticles in the manufacture of.
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Cosmetics for eyes
Medicines
Metals
Hair -dye
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Question # 19
Which of the following is not related to crystallography .
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Law of rational indices
Law of anymmetry
Law of constancy of interfacial angel
Henry's law
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Question # 20
Beer's law is followed in
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Flame photometry
Atomic absorption spectrophotometry
Mass spectrometry
Potentiometry
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Question # 21
The depolarizer used in dry cell batteries in.
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NH4Cl
MnO2
KOH
Na2PO4
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Question # 22
carbon monoxide is harmful to human beings as it.
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Is carcinogenic
Is antagonistic to CO2
Has higher affinity for haemoglobin as compared to oxygen
Is destructive to O3
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Question # 23
What is the equilibrium temperature of transformation of austenite to pearlite
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1000 F
1333 F
166 6 F
1222 F
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Question # 24
Boron does not form B3+ ion because.
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It has small size and high ionization energy
It has high electromagnetically
It has high charge density
None of the above
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Question # 25
Which of the following health effect is caused by lead.
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Cancer
Neurotoxin
Hypertension
Kidney damage
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Question # 26
Which of the following statement is related with CO.
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It is a colorless and tasteless gas
It has less affinity to words hemoglobin
It has a boiling point of -192
o
C
It is a dangerous asphyxiant
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Question # 27
The property measured in DTA is
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Heat effects
Weight loss
Rate of change in weight
Change in temperature
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Question # 28
The terpenoid responsible fo the smell
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Camphor
Genenial
Citral
Carvone
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Question # 29
On the basic of CFT the bonding between the metal and ligand is totally
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Ionic
Covalent
Coordinate
Metallic
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Question # 30
Which of the following process is involved in the purification of crude metals.
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Liquation process
Oxidation process
Distillation process
Electro refining
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Question # 31
The correct order of reactivity among I , Ii, and III IS.
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i > ii >iii
i > iii > ii
II > III > I
III > II > I
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