More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
ECAT Chemistry Chapter 6 Chemical Bonding Online Test MCQs With Answers
Question # 1
Which of the following molecules have its central atom sp
2
hybridized
Choose an answer
CH
4
C
2
H
2
C
2
H
4
CCl
4
Previous
Skip
Next
Question # 2
Ca, Mg, Be, Ba, belong to the same group, the order of their ionization energy values is
Choose an answer
Be > Mg> Ca > Ba
Ba > Ca > Mg > Be
Ca > Mg > Be > Ba
Ba > Mg > Ca > Be
Previous
Skip
Next
Question # 3
Which of the following is a polar molecules
Choose an answer
Carbon dioxide
Carbon tetrachloride
Methanol
Ethane
Previous
Skip
Next
Question # 4
Coordinate covalent bond is present in the molecules
Choose an answer
H
2
O
BF
3
SiO
2
SO
2
Previous
Skip
Next
Question # 5
The bond order O
2
molecule is
Choose an answer
1
2
3
Zero
Previous
Skip
Next
Question # 6
Generally electron affinities for elements in a period from left to right
Choose an answer
Decreases
Increases
Remain same
Increases alternatively
Previous
Skip
Next
Question # 7
Generally the bond formed by metals with non-metals is
Choose an answer
Ionic
Covalent
Polar
Non- polar
Previous
Skip
Next
Question # 8
Inter molecular forces in solid hydrogen are
Choose an answer
Covalent forces
Van der Waal forces or London dispersion forces
Hydrogen bonds
All of these
Previous
Skip
Next
Question # 9
When of the following is isolelectronic with krypton
Choose an answer
Ca
++
Al
+++
Br
-1
I
-1
Previous
Skip
Next
Question # 10
Choose an answer
154 pm
133 pm
120 pm
150 pm
Previous
Skip
Next
Question # 11
The bond order in No is 2.5 while that in NO
+
is 3.Which of the following statements is true for these two species?
Choose an answer
Bond length in NO
+
is greater than in NO
Bond length in unpredictable
Bond length in NO
+
is equal to that in NO
Bond length in NO is greater than in NO
+
Previous
Skip
Next
Question # 12
The tendency of an atom to attract shared electron pair towards itself is called
Choose an answer
Covelent bond
Electronegativity
Ionization potential
Electronic affinity
Previous
Skip
Next
Question # 13
The atomic radius of hydrogen is 37
Choose an answer
Pecometer
Manometer
Angstrom
Micrometer
Previous
Skip
Next
Question # 14
In a group the atomic size increase downward due to
Choose an answer
Addition of electronic shells
Increase in the proton number
Repulsion of electrons
All of the above
Previous
Skip
Next
Question # 15
Fluorine molecule is formed by
Choose an answer
The axial p-p overlap
The sidewise p-p overlap
The axial s-p overlap
The overlap of two sp
2
hybrid orbitals
Previous
Skip
Next
Question # 16
Which of the following has highest bond order
Choose an answer
Previous
Skip
Next
Question # 17
The covalent bonds are
Choose an answer
Unidirectional
Bi-directional
Non-directional
Multi-directional
Previous
Skip
Next
Question # 18
Two H-atom combine to form a strong H
2
molecule due to
Choose an answer
Increase in potential energy
Decrease in potential energy
Energy remains unchanged
Distance is increased
Previous
Skip
Next
Question # 19
According to VSEPR theory, the shape of the water molecule is
Choose an answer
Octahedral
Distorted tetrahedral
Planar triangle
Linear
Previous
Skip
Next
Question # 20
The bond angle H - O - H in ice ins closest to
Choose an answer
120
° , 28
'
60
°
90
°
109
°
Previous
Skip
Next
Question # 21
The nature of interparticle forces in benzene is
Choose an answer
Dipole-dipole interaction
Dispersion force
Ion-dipole interaction
H-bonding
Previous
Skip
Next
Question # 22
Atomic number of Al is 13. When it forms ionic bond with oxygen the number of electrons lost by 1 Al atom is
Choose an answer
1
2
3
4
Previous
Skip
Next
Question # 23
The equation for the first ionization energy of hydrogen is
Choose an answer
Previous
Skip
Next
Question # 24
The degree of polarity of molecule is known as its
Choose an answer
Dipole moment
Moment arm
Bond energy
Ionic character
Previous
Skip
Next
Question # 25
Nitrogen in NH
3
is sp
3
hybridized but the bond angle in NH
3
is 107° and not 109.5° due to
Choose an answer
sp
3
orbital planar
sp
3
orbital trigonal
Repulsion between lone pair and bonded pairs
None of them
Previous
Skip
Next
Question # 26
The structure of ICI
2
is
Choose an answer
Trigonal
Trigonal bipyramidal
Octahedral
Square planar
Previous
Skip
Next
Question # 27
The bond order for He
2
molecule is
Choose an answer
zero
1/2
1
2
Previous
Skip
Next
Question # 28
From the difference between expected bond energies for the normal covalent bond and experimentally determined values Pauling calculated the values of
Choose an answer
Ionization potential of elements
Electron affinity of elements
Electronegativity of elements
Bond length
Previous
Skip
Next
Question # 29
The overlapping of two partially filled atomic orbital is in such a way that the probability of finding the electron pair is maximum along the axis joining the two nuclei, the bond is
Choose an answer
Sigma bond
Pi bond
Ionic bond
Non-polar bond
Previous
Skip
Next
Question # 30
Among the alkaline earth metals the element forming predominantly covalent compounds is
Choose an answer
Be
Mg
Sr
calcium
Previous
Skip
Next
Question # 31
The shape of the molecule SF
2
Cl
2
is
Choose an answer
Trigonal bipyradmidal
Cubic
Octahedral
Tetrahedral
Previous
Skip
Next
Back