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PPSC Chemistry Full Book Test MCQs With Answers
Question # 1
The function of boiling the sodium extract with conc. HNO3 before testing the halogens is
Choose an answer
To make solution clear
To make the solution acidic
To bring common ion effect
To destroy CN- and S2- ion
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Question # 2
An element with atomic number 20 is placed in which period of the periodic table.
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1
2
3
4
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Question # 3
For the respiration of sea divers mixture is used.
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He & O2
Ar & O2
Ne & O2
Kr & O2
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Question # 4
PCl5 is an example of hybridization
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d sp
3
d2 sp2
sp2
sp3
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Question # 5
In which polymerization branching of chain cannot be possible.
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Free radical
Cationic
Anionic
Anionic and Zieglar Natta
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Question # 6
Which of the following extract is used for wet tests of acid radicals.
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Calcium carbonate extract
Sodium iodide extract
Sodium carbonate extract
Ammonium carbonate extract
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Question # 7
Vitamin D1 is chemically known as
Choose an answer
Ergocalciferol
Tocopherol
Aserphthol
Phylloquinone
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Question # 8
Arrhenius concept explained
Choose an answer
Constant heat of neutralization
Quantitative determination of acid base strength
Catalytic property of acid
All above
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Question # 9
Which of the following configuration of an ionic species represents psedue noble gas configuration.
Choose an answer
ns2
ns2 np6
ns2 np6 nd 10
ns2 np3
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Question # 10
In the electronic structure of acetic acid,the total number of shared and unshaped pair of electrons are respectively.
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16 ,8
8 ,4
12 ,8
8 ,12
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Question # 11
For one mole a gas, the total kinetic energy is equal to.
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2/3 Rt
3/2 RT
2/3 kT
3/2 kT
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Question # 12
Which of the following substance is generally not considered an air polutant.
Choose an answer
CO
CO2
SO2
NO2
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Question # 13
What refers to the tin mill steel, without a coating.
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White plate
Black plate
Tin steel free
Dichromate tin
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Question # 14
Which of the following relation corresponds to Faraday law of electrolysis.
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m = ZI t
E = mc
2
E = ho
None of the above
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Question # 15
The capacity of normal human eye to see the smallest object is _______ micro meter
Choose an answer
10000
1000
100
10
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Question # 16
The rusting of iron is catalyzed by which of the following.
Choose an answer
Fe
H+
O2
Zn
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Question # 17
Among the solvents given below, with dielectric constant (E) given in parentheses which has highest solubility of KCI?
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Benzene (E=O)
Carbon disulphide (E = O)
Methanol (E =32)
Acetone (E = 2)
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Question # 18
Used in TV sets and sound movies to give ready response to electrical potential
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He
Ne
Ar
Kr
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Question # 19
Which of the following system has low as well as upper consolute temperature.
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Nicotine - water
Aniline -water
Triethlylamine -water
Phenol -water
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Question # 20
Which of the following substance acts as gaseous pollutant.
Choose an answer
NO
NO2
CO
SO2
All above
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Question # 21
Which of the following health effect is caused by lead.
Choose an answer
Cancer
Neurotoxin
Hypertension
Kidney damage
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Question # 22
With which one of the following configurations, the lowest value of first IE is associated.
Choose an answer
Is2, 2s2, 2p6, 3s1
1s2, 2s2, 2p5
1s2, 2s2, 2p6
1s2, 2s2, 2p6, 3s2, 3p2
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Question # 23
The electrode Pt/Fe2+ (C1) Fe 3+ (C2) belong to the type.
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Gas electrodes
Inert metal electrodes
Magam electrodes
Metal metal insoluble salt electrode
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Question # 24
______ is used for Annealing
Choose an answer
Klin
Batch
Converter
Oven
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Question # 25
Hydrocarbon X (C6H12) on oxidation with hot alkaline (KMnO4) gives a mixture of prop ionic acid and dimethyl ketone. The structure of compound X is
Choose an answer
CH3CH = CHCH2CH2CH3
(CH3)2 C = CH CH2 CH3
CH3CH2CH = CHCH2CH3
(CH3)2 C = C (CH3)2
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Question # 26
Which of the following give higher fibre strength.
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Eucalyptus
Pine
Bagnasse
Sugar cane
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Question # 27
The particle motion in solids is
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Only vibratory
Only translator
Vibratory and rotatory
Only translatory
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Question # 28
Who prepared and explained nano tubes for the first time.
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Sumio Tijima
Richard Smaley
Erick Drexler
Richard Feynamann
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Question # 29
The phase rule was deduced by
Choose an answer
Gibbs
Thomson
Troution
Henry
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Question # 30
The soap and detergent are source of organic pollutants like.
Choose an answer
Glycerol
Polyphosphates
Sulphonated hydrocarbons
All of these
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Question # 31
Which of the following acid radical give organic layer test.
Choose an answer
Cl-
CO3
I
S
2-
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