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PPSC Chemistry Part III Inorganic Chemistry Online Test MCQs With Answers
Question # 1
Boron and aluminum halides are electron deficient compounds in this respect. they act as.
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Lewis acid
Lewis base
Oxidizing agent
Reducing agent
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Question # 2
Which of the following elements has the highest value of IE.
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Na
K
Mg
Ca
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Question # 3
According to SHAB, Lewis acid are divided into.
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Two classes
Three classes
Four classes
None of above
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Question # 4
An sp3 hybrid orbital contains
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1/4 a character
1/2 a character
2/3 a character
3/4 a character
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Question # 5
iodine is used as
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Tincture of iodine
Iodex and antiseptic
Treatment of goiter
All above
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Question # 6
In diborane (B2H6)
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The structure is similar to that of C2H6
All the atoms are in one plane
The born atoms are linked through hydrogen bridges
There is a direct boron boron bond
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Question # 7
Which of the following molecule does not contain the covalent bond between similar atoms.
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N2H4
F2O2
H2F2
H2O2
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Question # 8
Which of the following gas is lightest.
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Dihydrogen
Helium
Dinitrogen
Dioxygen
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Question # 9
HCIO2 gives the structure of a.
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Linear
Angular
trigonal pyramidal
Tetra hddral
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Question # 10
At high temperature nitrogen combines with calcium carbide to give
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Calcium cyanide
Calcium cyanamide
Calcium nitride
Calcium cabonate
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Question # 11
Transition metal possess
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Definite color
Catalytic power
Both A and B
None of above
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Question # 12
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 # 13
Which of the following contains both covalent and ionic bond.
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CCl4
NH4Cl
CaCl2
H2O
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Question # 14
Which of the following has the greatest metallic character.
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Na
Mg
Al
Si
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Question # 15
After assimilation urea leaves behind in the soil
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NH3
CO2
Both A and B
None of above
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Question # 16
The elements with highest electron affinity belongs to.
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Period 2 , group 17
Period 3, group 17
Period 2, group 18
Period, 2 , group 1
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Question # 17
Which of the ionic possesses highest bond energy.
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C-C
Si -Si
Ge - Ge
Sn -Sn
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Question # 18
The basic strength of hydrides of group 15 elements very in the following order.
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NH3 > PH3 > AsH3 > SbH3 >BiH3
PH3 > NH3 > AsH3> SbH3 > BiH3
BiH3> NH3 >PH3 > AsH3 > SbH3
NH3 > PH3 > SbH3 > AsH3 > BiH3
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Question # 19
The state of hybridization of Xe in Xe F6 are
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sp2
sp3
sp3 d
dsp3
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Question # 20
Mostly used solvents for ionic compounds.
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Liquid ammonia
Liquid SO2
Liquid HF
All above
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Question # 21
Pick out the incorrect statement.
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Red phosphorus consists of a complied chain structure and black phosphorus has a layer structure.
Nitrogen shows a little tendency for catenation, because N-N a single bond is very strong.
The xamimum number of covalent bonds formed by nitrogen is four, since it has no d-orbitals in its valence shell
The group 15 elements do not form M5+ ions, but +5 oxidatin state is realized only through covalent bonding.
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