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Online Tests
PPSC Chemistry Part III Inorganic Chemistry Online Test MCQs With Answers
Question # 1
Aluminium halides is.
Choose an answer
White crystalline solid
Hygroscopic
Sublimes at 180
o
C
All above
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Question # 2
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 # 3
Explosive trioxide XeO3 is produced when
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XeOF4 reacts with water
XeOF4 reacts with silica
XeF4 reacts with water
Any of above statements
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Question # 4
The boiling point of water is unexpectedly high because.
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H2O molecule in linear
Sp3 hydrogen bonding is involved in the formation of water
There is hydrogen bonding and consequent association of H2O molecules.
Oxygen is the first member of the VI group
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Question # 5
Which of the following has the maximum tendency to form complexes.
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K
Na
Rb
Li
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Question # 6
Magnalium is alloy of Aluminium which is used in
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Scientific apparatus
Aircraft parts
Rail road care
Boat machinery
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Question # 7
Anything that influence the valence electrons will affect the chemistry of the element Which of the following factors does not affect the valency shell.
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Valence principle quantum number in
Nuclear charge (Z)
Nuclear mass
Number of core electrons
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Question # 8
The oxidation state shown by phosphorus is.
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- 3
+ 3
+ 3 and +5
-3 ,+ 3 and +5
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Question # 9
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 # 10
The yellow colour of chromates changes to orange red on acidification, due to the formation of.
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Cr3+
Cr2O3
Cr2O7
2-
Cro3
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Question # 11
Which of the following halogen exist in solid state.
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F2
I2
Cl2
Br2
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Question # 12
Which of the following is the third most abundant element in the nature.
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Oxygen
Sulphur
Aluminum
Hydrogen
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Question # 13
Example of inter molecular H-bonding is
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NH3 and H2O
HF
CH3COOH
All of abvoe
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Question # 14
Pick out the incorrect statement regarding ozone.
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O3 is an unstbale dark blue diamagnetic gas
The central oxygen in O3 is sp3 hybridized
It cause the tailing of mercury
It does not react with KOH
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Question # 15
Dolmite is a mineral whose formula is.
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CaCO3
Mg CO3
CaCO3, MgCO3
CaSO4
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Question # 16
Which one of the following has a linear structure.
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H2O
CO2
NO2
SO2
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Question # 17
Which of the following is not an ore of Cr.
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Chrome iron
Nicollite
Crocisite
Chrome ochre
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Question # 18
Pick out the incorrect statements for transition metals.
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They have low melting and boiling points
5d-element have higher energies than 3d or 4 d elements
Zr and Hf have almost identical atomic and ionic radii
They form interstitial compounds.
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Question # 19
The types of coordinate compounds.
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Labila
Inert
Both A and B
None of above
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Question # 20
Which of the following compounds combines with hemoglobin.
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CO2
CO
NO
N2
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Question # 21
Which of the following species have undistributed octahedral structure.
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SF6
PF6
Si F
6
2-
XeF6
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