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PPSC Chemistry Part III Inorganic Chemistry Online Test MCQs With Answers
Question # 1
PCl5 is an example of hybridization
Choose an answer
d sp
3
d2 sp2
sp2
sp3
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Question # 2
Electron affinities of halogens are in the order.
Choose an answer
F > Cl > Br > I
Cl > F > Br > I
Cl > Br > I > F
Cl > Br > F > I
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Question # 3
The Lewis structure of which of the following does not have coordinate bond.
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SO2
HNO3
H2SO4
HNO2
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Question # 4
Hemimorphite is an example of.
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Orthosilicate
Pyrosilicate
Cyclic silicate
Meta silicate
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Question # 5
Which of the following is most soluble in water.
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BaSO4
Sr SO4
CaSO4
MgSO4
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Question # 6
d2 sp3 is oriented in a manner
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Trigonal
Tetrahedral
Octahedral
Trigonal bipyramidal
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Question # 7
Are used as water repellents
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Carbides
Silicon
Silicones
Silicates
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Question # 8
Pick out the incorrect statement
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The geometry around 'N' atom in trimethylamine is pyramidal
The geometry around N atom in trisilylamine is planar
The nitrogen atim is trimethylamine is sp2 hybridized whilst in trisilylamine it is sp2 hybridized
Trisilylamine has donor properties whilst trimethylamine has no donor properties.
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Question # 9
Which compound among the following does not contain an ionic bond.
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NaOH
HCl
KaS
LiH
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Question # 10
Stainless steel consists of which elements.
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Fe only
Cr only
Fe and Ni
Fe ,Ni and Cr
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Question # 11
Which group contains elements that exist as monoatomic molecules.
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1
2
14
18
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Question # 12
H2SO4 acts as gent
Choose an answer
Reducing
Oxidizing
Both A and B
None of above
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Question # 13
Most electronegative element is.
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C
Si
Pb
Sn
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Question # 14
A chemical reaction resulting in a change in the electric charge on the reacting particles may be called as.
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Add ion reaction
Redox reaction
Elimination reaction
Chain reaction
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Question # 15
The correct order of ionization energies of alkali metals is.
Choose an answer
Li > Na > K > Rb
Na > K > Rb > Li
Rb > K > Na > Li
Rb > K > Li > Na
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Question # 16
The correct order of second ionization potential of carbon nitrogen, oxygen and fluorine is.
Choose an answer
C > N > O > F
O > F > N > C
O > N > F > C
F > O > N > C
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Question # 17
Drying agent which react with CO2 and removes water vapours is.
Choose an answer
CaO
CaCl2
CaCO3
Ca(NO3)2
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Question # 18
Group IV A consist elements.
Choose an answer
3
4
5
6
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Question # 19
The most stable oxidation state shown by lead is.
Choose an answer
+2 , +4
+2 only
+3 , +4
+4 only
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Question # 20
Among LiCl, BeCl2, BCl3, and CCl4 the covalent bond character follows the order.
Choose an answer
LiCl < Becl2< Bcl3 < CCl4
LiCl > BeCl2 < BCl3<CCl4
LiCl< Becl2 < BCl3 < CCl4
LiCl > Becl2 > BCl3 < CCl4
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Question # 21
Buffer solution are used to.
Choose an answer
Increase the pH
Resist the pH
Decrease the pH
None of above
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