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Online Tests
PPSC Chemistry Part III Inorganic Chemistry Online Test MCQs With Answers
Question # 1
Which of the following iso electronic spices has the highest IE.
Choose an answer
Ne
Na+
F
O2-
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Question # 2
Group III A of the periodic table consist of elemetns.
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3
4
5
6
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Question # 3
AI Cl3 acts as a strong Lewis acid, because it is.
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A covalent compound
Readily hydrolyzed
Electron deficient
An ionic compound
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Question # 4
The correct order of ionization energies of alkali metals is.
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Li > Na > K > Rb
Na > K > Rb > Li
Rb > K > Na > Li
Rb > K > Li > Na
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Question # 5
Which of the following bonds will be non polar.
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N - H
O - H
C - H
C l - Cl
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Question # 6
Of the following an amphoteric hydroxide is.
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Ca(OH)2
NaOH
Be (OH)2
Li OH
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Question # 7
Which of the following statements in incorrect.
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Sodium hydride is ionic
Beryllium chloride is covalent
CCl4 gives a white ppt with AgNO3 solutions.
Bonds in NaCl are non directional
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Question # 8
Concentrated aqueous sodium hydroxide can separate a mixture of.
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Al3+ and Sn2+
Al3+ and Fe3+
Al3+ and Zn2+
Zn2+ and Pb2+
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Question # 9
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 # 10
Oxides ores of Aluminium
Choose an answer
Corundum
Bauxite
Diaspore
All above
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Question # 11
Valences bond theory was put forward by
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Pauling and Slatter
Heitler and London
Lewis
Pauli
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Question # 12
The process requirieng the absorption of energy of.
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F = F
Cl = Cl
H = H
O = O
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Question # 13
The law of triads is applicable to
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Lithium, beryllium, boron
Fluorine, chlorine, bromine
Chlorine, bromine, iodine
Sodium, potassium, Rubidium
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Question # 14
Which of the following does not form stable diatomic molecule.
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Nitrogen
Phosphorus
Hydrogen
Oxygen
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Question # 15
Used in filling luminous tubes.
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Xenon
Krypton
Radon
Helium
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Question # 16
Which process of adsorption of hydrogen on palladium is known as.
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Syneresis
Occlusion
Diffusion
Erosion
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Question # 17
The oxidation state of HCiO4
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+ 7
+ 3
+ 5
+ 1
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Question # 18
Which of the following statements about anhydrous aluminium chloride is correct.
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It exist as AlCl3 molecules
It is not easily hydrolysed
It sublimes at 100
o
C under vacuum
Boron does not form B
3+
ions
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Question # 19
Catenation is a process of.
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Formaton of cations
Deposition of cations
Formation of long chain of identical atoms
Formation of covalent bond
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Question # 20
The hybridization of S in SO2 is.
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sp
sp2
sp3
dsp2
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Question # 21
Arrhenius concept explained
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Constant heat of neutralization
Quantitative determination of acid base strength
Catalytic property of acid
All above
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