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PPSC Chemistry Part III Inorganic Chemistry Online Test MCQs With Answers
Question # 1
The gases that are responsible for green house effect are.
Choose an answer
CO2 & CH4
CFC
N2O
All above
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Question # 2
Strength of H bond in inter mediate between
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Van der Waals forces and covalent bond
Ionic and covalent bond
Ionic and metallic bond
Metallic and covalent
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Question # 3
Which of the following is a pseudohalide.
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I3-
IF7
CN-
ICI
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Question # 4
The correct increasing order of bond dissociation energy for N2, O2, F2 and Cl2 is
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N2 < O2 < F2 < Cl2
F2 < Cl2 < O2 < N2
F2 < Cl2 < N2 < O2
N2 < Cl2 < F2 < O2
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Question # 5
Which show maximum number of oxidation states in 3d series.
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Mn
Ni
Co
Zn
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Question # 6
The green colour of glass is due to the presence of.
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Chromium (III)
Cobalt (II)
Mn (IV)
Iron(III)
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Question # 7
Mostly used solvents for ionic compounds.
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Liquid ammonia
Liquid SO2
Liquid HF
All above
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Question # 8
Dibornae is used
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Fro high energy fuel
For welding torches
as reducing agent
All above
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Question # 9
Which of the following is a false statement.
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Halogens are strong oxidizing agent
Halogens show only (-I) Oxidation state
Hf molecules from intermolecular H-Bonds
Fluorine is highly reactive
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Question # 10
The different layers in graphite are held together by
Choose an answer
Ionic bonding
Metallic bonding
Covalent bonding
Van der Waals forces
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Question # 11
Hydrometallurgy of copper involves extraction of copper from poor ores by which process.
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Dry process
Wet process
Both dry and wet process
None of these
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Question # 12
"Acids are substance whose aqueous solutions turned blue litmus red and tasted sour" stated by
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Davy
Liebig
Boyle
Rouelle
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Question # 13
The oxidation number Xe in XeOF2 is
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0
+2
+4
+3
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Question # 14
The electronic configuration of some elements are given below. The element with highest electron affinity is
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1s2, 2s2, 2p3
1s2, 2s2, 2p4
1s2, 2s2, 2p5
1s2, 2s2, 2p6
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Question # 15
Which of the following is not true of ozone.
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It is a strong electilizing agent
It attacks organic compounds containing carbon carbon double bond
Its molecular is linear and has two different O-O bond lengths
It is more powerful oxidising agent at molecular oxygen
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Question # 16
Which among the following elements has the highest value of IE.
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Mg
Na
Ca
Sr
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Question # 17
Non localised bonds are referred as
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Metallic bond
Long range bonds
Ionic bond
Covalent bonds
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Question # 18
The magnitude of electron affinity depends on.
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Atomic size
Nuclear charge
Electronic configuration
All of the above
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Question # 19
Inter halogens are of types.
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3
4
5
6
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Question # 20
Valences bond theory was put forward by
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Pauling and Slatter
Heitler and London
Lewis
Pauli
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Question # 21
Pick out the incorrect statement for XeF4
Choose an answer
XeF4 disproportionate violently with water
It is used as fluorinating agent
It has octahedral structure for geometry
It oxidizes I to I
2
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