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MDCAT Chemistry Chapter 9 Electrochemistry Online Test MCQs With Answers
Question # 1
What will be the shape of a molecule which containstwo sigma bond pairs and one lone pair?
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Linear
V shape
Tetragonal
Triangular
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Question # 2
what is the exact value of angle in BF3
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90
104.51
119.5
120°
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Question # 3
Polarity of a molecule is expressed in terms of
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Bond strength
Dipole moment
Bond length
Shape
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Question # 4
pi-bond can be formed by sideways overlap of
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s-orbital
d-orbital
p-orbital
sp orbital
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Question # 5
The elements for which the value of ionization energy is low can
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Gain electrons readily
Lose electron less readily
Gain electrons with difficulty
Lose electron readily
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Question # 6
In a group, the atomic radii from top to bottom
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increase
decrease
don't change
show variable trend
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Question # 7
The shielding effect of inner electron is responsible for
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Having no effect on ionization energy
Decreasing ionization energy
Increasing ionization energy
Increasing electronegativity
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Question # 8
Geometry of simple molecule with sp2 hybridization
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Triangular planar
Trigonal
Square planner
Pyramidal
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Question # 9
A covalent bond may be
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100% covalent
Partial ionic
100% ionic
Both a and b
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Question # 10
Which one is a non-polar compound?
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SnCl2
PH3
Gecl4
H2O
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Question # 11
A molecule which contains two lone pairs and two bond pairs of electrons in valence shell of central atom, geometrical shape of molecules will be
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Tetrahedral
Trigonal pyramidal
Angular
Linear
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Question # 12
The no. of Ip's on oxygen in CO are
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1
3
4
2
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Question # 13
Which of the following molecule has zero dipole moment?
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PCI3
BF3
NH3
H2O
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Question # 14
A molecule that has polar bonds but is overall non - polar
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IF
CCl4
PCI3
All
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Question # 15
Which one of the following has zero dipole moment
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NH3
CHCI3
H2O
BF3
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Question # 16
Which one of the followings has polar covalent bonds hut is overall nom-polar molecule:
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HF
CO
2
CH
4
N
2
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Question # 17
Among the following molecules, which one has coordinate covalent (dative) bond?
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CCI4
CO2
CO
CH4
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Question # 18
lonic bond is produced after complete transfer of
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nucleus
neutrons
electrons
protons
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Question # 19
What is not true for NH4CI
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It has ionic bond
It has covalent bond
It has coordinate bond
It has hydrogen bond
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Question # 20
Covalent bonds are
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directional
Bidirectional
Multidirectional
Non directional
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