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PPSC Chemistry Part III Inorganic Chemistry Online Test MCQs With Answers
Question # 1
Group IV A consist elements.
Choose an answer
3
4
5
6
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Question # 2
[Ti(OH2)6]3+ gives colour
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Green
Red
Purple
Blue
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Question # 3
When two H atoms approach each other then forces operates.
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Attractive forces
Repulaive forces
Attractive and repulsive
None of above
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Question # 4
When a lead a storage battery is discharged .
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SO2 is evolved
PbS is consumed
Pb is formed
H2SO4 is consumed
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Question # 5
The element with atomic numebr greater than 100 are known as
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Trans uranium elements
Trans fermium elements
Actinides
Lanthanides
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Question # 6
iodine is used as
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Tincture of iodine
Iodex and antiseptic
Treatment of goiter
All above
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Question # 7
Which of the following oxides is amphoteric..
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CaO
BaO
BeO
MgO
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Question # 8
Which of the following alkaline earth metals occurs in radioactive form in nature.
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Ca
Mg
Ra
Ba
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Question # 9
Aluminium hydroxide is.
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An acid
An amphoteric hydroxide
A base
An explosive hydroexide
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Question # 10
Which of the following is the weakest base.
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KOH
NaOH
LiOH
RbOH
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Question # 11
Which of the following halide has lowest melting point.
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NaCl
NaF
NaBr
NaI
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Question # 12
Used in producing intense light in cinematography
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Xenon
Krypton
Radon
Helium
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Question # 13
Glass electrode cannot be used to measure the pH of pure.
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Acetic acid
Ethyl alcohol
Gelatin
All above
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Question # 14
Which of the following elements of group 15 is a typical metal.
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P
As
Bi
Sb
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Question # 15
Which one of the following does not exhibit paramegnetion.
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NO
NO2
CiO2
CIO-2
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Question # 16
Group III A of the periodic table consist of elemetns.
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3
4
5
6
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Question # 17
Acid rain effects
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Human being
Crops
Aquatic life
All above
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Question # 18
Which of the following have +3 oxidation states.
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B & AI
In & TI
B & In
AI & TI
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Question # 19
Which number of halogen family does not show positive oxidation state.
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Fluorine
Chlorine
Bromine
Iodine
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Question # 20
In each period the element with lest electron affinity belongs to.
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Group 1
Group 14
Group 17
Group 18
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Question # 21
The different layers in graphite are held together by
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Ionic bonding
Metallic bonding
Covalent bonding
Van der Waals forces
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