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Worksheets

Lewis Structures VSEPR

Total questions: 20

Worksheet time: 58mins

Name
Class
Date
1.

CO2 has polar bonds but is a NON POLAR molecule. Why?

a)

it has an asymmetrical shape

b)

dipole moment between C and O atoms cancel

c)

there is net dipole moment between C and O atoms in molecule

d)

bond polarity does not exist between C+ and O- atoms

2.

Does the following reference Polar, Nonpolar, or both:

"electronegativity values are the same"?

a)

Polar

b)

Nonpolar

c)

Both

3.

Is this molecule polar or nonpolar?

a)

polar

b)

nonpolar

4.
According to VSEPR, molecules adjust their shapes to keep which of the following as far away as possible?
a)
Pairs of valence electrons
b)
Inner shell electrons
c)
Mobile Electrons
d)
Electrons closest to the nucleus
5.
In a polar bond, the more electronegative element will assume a partial ________ charge.
a)
positive
b)
negative
6.

Type of bond between Br & Br

a)

Ionic

b)

Polar Covalent

c)

Nonpolar Covalent

7.

Which molecule contains bonds with a GREATER polarity or which molecule is more polar?

a)
HCl
b)
CCl4
8.

What is the correct Lewis Dot Structure for ammonia NH3

a)
b)
c)
d)
9.

Which is the correct molecular structure for carbon dioxide?

a)
b)
c)
d)
10.
What molecule could this be? 
a)
BF3
b)
CH4
c)
H2O
d)
CO2
11.

What is the shape? Hint: Draw the Lewis dot structure for NH3.

a)

tetrahedral

b)

trigonal pyramidal

c)

trigonal planar

d)

bent

12.
What is the shape of H2O?
a)
linear
b)
tetrahedral
c)
bent
d)
trigonal pyramidal
13.

SiCl4 has what shape?

a)

trigonal planar

b)

pyramidal

c)

tetrahedral

d)

trigonal pyramidal

14.

3 atoms bonded and 0 lone pairs

a)

linear

b)

trigonal planar

c)

bent

d)

tetrahedral

e)

trigonal pyramidal

15.

3 atoms bonded and 1 lone pairs

a)

true linear

b)

trigonal planar

c)

bent

d)

tetrahedral

e)

trigonal pyramidal

16.

Is this molecule polar or non-polar?

a)

Non-polar

b)

Polar

17.
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
18.
The bond angle for a trigonal planar molecule is 
a)
90 Degrees
b)
109.5 Degrees
c)
120 Degrees
d)
180 Degrees
19.
Choose the correct shape for this molecule:
a)

Bent (120o)

b)
Linear
c)
Tetrahedral
d)
Trigonal pyramidal
e)

Bent (109o)

20.

Which Lewis Structure drawing correctly shows an O2 molecule?

a)
b)
c)
d)