NEW
Font size
S
M
L
XL
WorksheetsCHM361 Valence Bond Theory
Total questions: 17
Worksheet time: 1hrs 25mins
Name
Class
Date
1.
Which of the following is the correct Lewis structure for the compound PBr3?
a)
structure A
b)
structure B
c)
structure C
d)
structure D
2.
If electrons are shared unequally then the bond is....
a)
Non-polar covalent
b)
Ionic
c)
Non-polar ionic
d)
Polar covalent
3.
A lone pair is defined as
a)
A pair of bonding electrons
b)
One non-bonding electron
c)
A pair of non-bonding electrons
d)
A pair of electrons on the central atom
4.
Which of the following shapes has an unshared pairs of electrons on the central atom?
a)
Bipyramidal
b)
Bent
c)
Trigonal Planar
d)
Tetrahedral
5.
What molecule could this be?
a)
BF3
b)
CH4
c)
H2O
d)
CO2
6.
What molecule could this be?
a)
H2O
b)
CCl4
c)
PCl5
d)
NaCl
7.
Who could this be?
a)
CO2
b)
NH3
c)
H2S
d)
CH4
8.
VSEPR theory is to
a)
determine the number of bonding and lone pairs electrons
b)
determine the number of ECC
c)
determine the shape and geometry of molecule
d)
determine the lewis structure of molecule
9.
Which statement is TRUE, based on the diagram provided?
a)
atomic orbital overlap to produce sigma bond
b)
s orbital overlap to produce π bond
c)
s orbital overlap with s orbital to produce sigma bond
d)
p orbital overlap to produce π bond
10.
Which molecule will undergo the following hybridization?
a)
NH3
b)
CH4
c)
PCI3
d)
SiH4
11.
Diagram shows oxygen atom undergoing hybridization. Which statement is FALSE ?
a)
2 bonding and 2 lone pair are formed
b)
O atom has tetrahedral electron arrangement
c)
four sp3 hybrid orbitals are formed
d)
shape of molecule is tetrahedral
12.
What is the hybridization of a linear molecule?
a)
sp
b)
sp2
c)
sp3
d)
sp3d
13.
What is the hybridization of the Carbon atom indicated by the arrow?
a)
sp hybridization
b)
sp2 hybridization
c)
sp3 hybridization
d)
dsp3 hybridization
14.
VSEPR stands for ________ theory.
a)
Valence Structure of Electron Pyramids and Regression
b)
Varied Structures of Electrons Paired and Replaced
c)
Varied Shell Energy of Protons and Radiation
d)
Valence Shell Electron Pair Repulsion
15.
How many are shared in a double bond?
a)
2
b)
4 pairs
c)
6
d)
4
16.
Draw the Lewis Dot structure for ICl2- and determine its predicted molecular geometry.
a)
see-saw
b)
trigonal bipyramidal
c)
linear
d)
bent
17.
How many sigma and pi bonds does this have?
a)
3 sigma and 2 pi
b)
5 sigma and 5 pi
c)
5 sigma and 0 pi
d)
0 sigma and 5 pi
Reset
