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PPSC Chemistry Full Book Test MCQs With Answers
Question # 1
The most reactive alkali metal among the following is
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Li
Na
Cs
Rb
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Question # 2
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 # 3
Lother Meyer plotted a graph showing variation of.
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Atomic volume with increase in atomic number
Atomic volume with increase in atomic weight
Atomic redii with increase in atomic weight.
Atomic weight which increase in atomic number
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Question # 4
On industrial scale chlorine is prepared by
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Dennis method
Deacon's process
Plantner's process
Aludels process
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Question # 5
Which of the following statement is not correct with respect to limitations of Hammett equation.
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It is only applicable to aromatic systems
Only applicable to aliphatic systems
It is not valid for m-substituent
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Question # 6
The Lambert beer law states that
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Transmission is directly proportional to path length
Transmission is directly proportional to concentration
Absorbance is inversely proportional to transmission
Absorbance is directly proportional to concentration.
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Question # 7
SO2 acts as
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Lewis base
Lewis acid
Botha A and B
None of above
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Question # 8
Which of the following salt is soluble in water.
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BaCO3
SrCO3
CaCO3
K2CO3
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Question # 9
Which of the following physical properties is employed int he analytical methods.
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Electric current
Transition temperature
Surface tension
All above
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Question # 10
Hot isostatic pressing is not a viable option if the chief criterion is
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Strength without gram growth
Lost cost
Zero porosity
Make it hard
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Question # 11
Which one of the following is not formed when an electric discharge passes through helium.
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HeH+
HeH2+
He2+
He2-
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Question # 12
Which of the following does not belong in the group of herocyclic dyes.
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Acridine
Cyanine
Methylene blue
Amido black
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Question # 13
Which of the following is not a general property of amino acids.
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They have high m.p. and b.p
They are soluble in water
Their dipole moments are high
They are amorphous solids
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Question # 14
The Langmuir adsorption iso therrn shows that the amount of adsorbed gas per gram of the solid is equal to.
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ap/1+bp
ap+1/1-bp
1+ap/1-bp
a(1+bp)
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Question # 15
Duralumin is an alloy of.
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Mg + AI
Ai+ Mg+Mn
Mg + Ai + Cu
Mg + Ai + Cu + Mn
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Question # 16
Which of the following health effect is caused by mercury.
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Nerve damage
Brain damage
Kidney damage
All above
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Question # 17
Complete hydrolysis of nucleotide result in the formation of.
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Heterocyclic bases
A pentose
A phosphate ion
All of these
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Question # 18
Polyethylene Glycols are used in the preparation of which tye of detergetns.
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Cationic detergents
Anionic detergents
Non ionic detergent soaps
None of above
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Question # 19
Which element amongst the following has the highest boiling point.
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Na
Mg
Ca
K
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Question # 20
Which of the following statements is false about enantiomers.
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Rotate plane of polarized light
Are superimposable mirror images
Nbonsuperimposable mirror images
All of the above
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Question # 21
Two solids A and B have appreciable different solubility in water but their m.p. are very close. The mixture A and B can be separated by.
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Sublimation
Distillation
Fractional crystallization
Specific rotation
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Question # 22
The element having electronic configuration 1s2, 2s2, 3s2, 3p3 is.
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Trivalent only
Tetravalent only
Trivalent and pentavalent
Pentavalent only
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Question # 23
Metal crystallize is system having co ordination number
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8
12
14
any one of above
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Question # 24
Boric Acid is used
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In manufacture of pottery glaze
In medicine as an antiseptic
In tanning industry
All above
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Question # 25
Which of the following is not a biodegradable polymer.
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Protein
PVC
Cellulose
Nucleic acid
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Question # 26
Lime water is an aqueous solution of.
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MgSO4
Ca (OH)2
CaCO3
CaSO4
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Question # 27
The rise of a liquid in capillary tube is due to.
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Osmosis
Diffusion
Surface tension
Viscosity
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Question # 28
Dry distillation of amino acids with barium hydroxide yields.
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Acids
Amines
Alcohols
Hydroxy acids
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Question # 29
An element having low IE and low EA is likely to belong to.
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Group IA
Group IB
Group VII A
Group VIII
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Question # 30
The IUPAC name of ethylene oxide is.
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Epoxy methane
Oxcethene
Methoxymethane
All of the above
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Question # 31
Which of the following health effect is caused by lead.
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Cancer
Neurotoxin
Hypertension
Kidney damage
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