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Online Tests
PPSC Chemistry Part III Inorganic Chemistry Online Test MCQs With Answers
Question # 1
Which one of following is paramagnetic and has the bond order equal to 0.57
Choose an answer
N2
H2+
O2
F2
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Question # 2
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 # 3
Which of the following carbonates decomposes at the highest temperature.
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Mg CO3
CaCO3
Sr CO3
Ba CO3
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Question # 4
Which among the following hydride is ionic in nature.
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Ammonia
Protium oxide
Calcium hydride
Sulphane
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Question # 5
Covalent compound are soluble in
Choose an answer
Polar solvents
Non polar solvent
Concentrated acids
All solvent
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Question # 6
Finely divided iron combines with CO to give.
Choose an answer
Fe(CO)5
Fe2(CO)9
Fe(CO)12
Fe(CO)6
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Question # 7
Which of the following process is used for the conversion of matte is to nickel.
Choose an answer
Orford process
Mond's process
Electrolytio process
All
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Question # 8
Which of the following statement is not correct.
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The element with highest IE belongs to group 18
In each period the element with lowest IE belongs to group I
In each period the element with highest IE is a noble gas
In the second period as we move from left to right, ionization energy increases reqularly.
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Question # 9
Perdisulphuric acid is.
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Marshal acid
Caro acid
None of above
Any of above
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Question # 10
In coordination chemistry the donor atom of a ligand is.
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A Lewis acid
The counter ion
The central metal atom
The atom in the legend that shares an electron pair with the metal
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Question # 11
Al Cl3 is used in
Choose an answer
Manufacturing of petrol
In borax bead test
Prezervation of food
All above
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Question # 12
Aluminium hydroxide is.
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An acid
An amphoteric hydroxide
A base
An explosive hydroexide
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Question # 13
Of the following the commonly used n the laboratory desiccator is.
Choose an answer
Anhyd. Na2Co3
Anhyd Ca Cl2
Dry NaCl
None of the above
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Question # 14
Which of the following has the highest melting point.
Choose an answer
NaCl
KCl
MgO
BaO
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Question # 15
Which of the following is the active ingredient in ordinary household bleach.
Choose an answer
HCl
Cl2
NaCl
NaCIO
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Question # 16
A colorless gas with pleasant odour and sweet taste.
Choose an answer
N2O
N2O3
NO
N2O4
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Question # 17
How many unpaired electron are there in a strong field iron (II) octahederal compled.
Choose an answer
0
1
2
4
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Question # 18
Bromine is soluble in
Choose an answer
Alcohol
Water
Chloroform
All above
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Question # 19
On industrial scale chlorine is prepared by
Choose an answer
Dennis method
Deacon's process
Plantner's process
Aludels process
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Question # 20
Of the molecules, SF4 Xe F4 and CF4 which have square planar geometry.
Choose an answer
SF4 , Xe f4 and CF4
SF4 only
CF4 only
XeF4 only
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Question # 21
What element is the most abundant by mass in the Earth's crust.
Choose an answer
Fe
H
O
K
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