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WorksheetsUnit 9 VSEPR
Total questions: 16
Worksheet time: 3hrs 40mins
Name
Class
Date
1.
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
2.
Which of the following shapes has an unshared pairs of electrons on the central atom?
a)
Bipyramidal
b)
Bent
c)
Trigonal Planar
d)
Tetrahedral
3.
Which molecule would have this molecular geometry?
a)
BF3
b)
CH4
c)
PCl5
d)
CO2
4.
What molecule could this be?
a)
BF3
b)
CH4
c)
H2O
d)
CO2
5.
What molecular geometry would PH3 have?
a)
Trigonal Pyramidal
b)
Trigonal Planar
c)
Bent
d)
Linear
6.
How many electrons are represented by a single straight line in a Lewis structure?
a)
1
b)
2
c)
4
d)
6
7.
The most electronegative atom in the periodic table is:
a)
Fluorine
b)
Helium
c)
Neon
d)
Francium
8.
In this Lewis structure, the symbol above F means...
a)
electrons are being transferred to Fluorine
b)
electrons are less attracted to F than H
c)
electrons are more attracted to F than H
d)
Fluorine has formed a cation
9.
This is an example of a __________ bond.
a)
non-polar covalent
b)
polar covalent
c)
ionic
d)
metallic
10.
A diatomic molecule like O2 is always_______ because electrons are shared ________.
a)
nonpolar; equally
b)
polar; equally
c)
nonpolar; unequally
d)
nonpolar; unequally
11.
How many valence electrons does Hydrogen Have?
a)
1 Valence electron
b)
2 Valence electron
c)
3 Valence electron
d)
4 Valence electron
e)
5 Valence electron
12.
What is the correct Lewis Dot Structure for ammonia NH3
a)
b)
c)
d)
13.
CCl4 has how many double bonds?
a)
0
b)
1
c)
2
d)
3
14.
How many resonance structures for NO3- ion?
a)
1
b)
2
c)
3
d)
4
15.
A molecular geometry with 2 lone pairs and 2 bonding pairs is
a)
Tetrahedral
b)
Trigonal pyramidal
c)
Bent
d)
Linear
16.
Will this molecule be polar or nonpolar or ionic? CS2
a)
polar
b)
nonpolar
c)
ionic
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