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PPSC Chemistry Full Book Test MCQs With Answers
Question # 1
The mole of photon is known as
Choose an answer
Quantum
Eienstein
Energy Packet
None of the above
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Question # 2
Which of the following is not an ore of Cr.
Choose an answer
Chrome iron
Nicollite
Crocisite
Chrome ochre
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Question # 3
Is a chain silicate
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Olivine
Tremolite
Beryl
Zeolite
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Question # 4
Which of the following is capable of shown g optical isomersm.
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CH3COCOOH
CH3CHOHCOOH
Botha a and b
All of these
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Question # 5
Which of the following species is very poor oxidizing agent
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H+
Zn
2+
Fe
3+
MnO
4
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Question # 6
Artificial nitrogen fixation may occur by the formation of.
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Nitric acid
Ammonia
Nitrides
Any of above
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Question # 7
Which of the following property has a higher value for trans isomer as compared to cis isomer.
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Density
Dipole moment
Melting point
Boiling point
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Question # 8
The bonding of transition metal complex was not well understand until the pioneer work of.
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Ps JAISWAL
GS MANKU
BR thukral
Alfred Weriner
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Question # 9
The reduction in ozone layer would lead to
Choose an answer
Temperature chages
Rainfall failure
Increase uv radiation on earth
All above
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Question # 10
Which of the following is not a proper use of Ni.
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It is used as catalyst
It is used in alloy formation
It is used in the preparation of Monel metal
It is attached by alkalis
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Question # 11
Sodium silicate is ued
Choose an answer
In fire proofing of wood and textiles
As a preservative of eggs
As a furniture polish
All above
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Question # 12
Which of the following physical property forms the basis of radio chemicals methods of analysis.
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Absorption of light
Emission of light
Radioactivity
Thermal conductivity
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Question # 13
The state of hybridization of carbon in CO2 is
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sp2
sp
sp3
dsp2
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Question # 14
Which of the following interaction is the strong.
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Dipole -dipole
Ion induced dipole
Ion -dipole
Dipole induced diple
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Question # 15
An electron has types of motion
Choose an answer
Spin motion
Orbital motion
Both A and B
None of above
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Question # 16
Turpentine is obtained from._______________
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Oak tree
Pine tree
Birch tree
Lemon tree
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Question # 17
Which of the following compounds combines with hemoglobin.
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CO2
CO
NO
N2
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Question # 18
Ingold's isoprence rule states that in terpenoids isopren units are joined.
Choose an answer
Head to tail
Head to head
Tail to tail
In a random order
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Question # 19
The units of surface tension in SI system are
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Joule m-1
Newton m-1
Erg cm-1
Dynes cm-2
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Question # 20
In which of the following characteristics does hydrogen resemble halogens.
Choose an answer
Hydrogen is the lightest gas
H atoms contains one electron each
Hydrogen forms ionic hydrides with alkali metals
Hydrogen has three isotopes.
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Question # 21
Helium oxygen mixture is used by deep sea divers in preference to nitrogen oxygen mixture, because.
Choose an answer
Helium is much less soluble in blood than nitrogen
Nitrogen is much less soluble in blood than helium
Due to high pressure deep under the sea, nitrogen and oxygen react to give poisonous nitric oxide.
Nitrogen is highly soluble in wateer
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Question # 22
The osmotic pressure of a solution with definite composition.
Choose an answer
Varies directly as the volume and temperature.
Various inversely as the temperature.
Varies inversely as the volume and directly as the temperature.
None of the above
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Question # 23
Iodination of benzene takes place in the presence of iodine and
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HNO3
HIO3
HgO
All of these
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Question # 24
Which of the following is not strong electrolytes.
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HCl
H2SO4
HNO3
CH3COOH
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Question # 25
Pick out incorrect statemtn about K2r2O7
Choose an answer
It oxidizes acidified solution of H2S to S
It oxidizes Ki TO i2
It oxidizes HCl to Cl2
It gives oxygen, when treated with cold conc. H2SO4
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Question # 26
Who proved that all the six hydrogen atoms in benzen are equivalent.
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Kekule
Ladenburg
Faraday
Wohler
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Question # 27
Covalent compound are soluble in
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Polar solvents
Non polar solvent
Concentrated acids
All solvent
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Question # 28
The structure of SO2
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Linear
Angular
V-shaped
Planner
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Question # 29
The bond formed by complete transfer of electrons from electropositive to more electronegative atom is called.
Choose an answer
Ionic bond
Covalent bond
Mettalic bond
Co ordinates bond
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Question # 30
Carbylamine reaction proceeds via the intermediate formation of.
Choose an answer
Alkyl isocyanide
Chloride ion
Alkyl carbonion
Dichloro methylene
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Question # 31
PCRA stand for
Choose an answer
Pollution control research association
Petroleum conversation Research association
Petroleum control research association
All of above
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