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Molecular Geometry and Polarity (Honors)

Total questions: 106

Worksheet time: 2hrs 46mins

Name
Class
Date
1.

Is this molecule polar or non-polar?

a)

Polar

b)

Non-polar

2.

Is this molecule polar or non-polar?

a)

Polar

b)

Non-polar

3.

Is this molecule polar or non-polar?

a)

Non-polar

b)

Polar

4.

Is this molecule polar or non-polar?

a)

Non-polar

b)

Polar

5.
In covalent bonds, electrons are ___________.
a)
transferred
b)
gained
c)
lost
d)
shared
6.
In a polar covalent bond, electrons are shared ___________.
a)
equally
b)
unequally
c)
between non-metals with similar electronegativities
d)
between a metal and a non-metal
7.
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
8.
This is an example of a __________ bond.
a)
non-polar covalent
b)
polar covalent
c)
ionic
d)
metallic
9.
What geometry will this molecular structure have?: PH3
a)
bent
b)
tetrahedral
c)
linear
d)
trigonal pyramidal
10.
What geometry will this molecular structure have?: H2S
a)
bent
b)
tetrahedral
c)
linear
d)
trigonal pyramidal
11.
What geometry will this molecular structure have?: CCl4
a)
bent
b)
tetrahedral
c)
linear
d)
trigonal pyramidal
12.
Will this molecule be polar or nonpolar? H2S
a)
polar
b)
nonpolar
13.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
14.

What is the molecular geometry for this molecule?

a)

Bent

b)

Trigonal pyramidal

c)

Trigonal planar

d)

Linear

15.
Choose the correct shape for this molecule:
a)
Bent
b)
Linear
c)
Tetrahedral
d)
Trigonal pyramidal
16.
Choose the correct shape for this molecule:
a)
Trigonal planar
b)
Trigonal pyramidal
c)
Tetrahedral
d)
Linear
17.
Choose the correct shape for this molecule:
a)
linear
b)
Trigonal pyramidal
c)
Bent
d)
Tetrahedral
18.

The geometry of a molecule with 4 bonded pairs of electrons and 0 lone pairs of electrons, AB4

a)

Tetrahedral

b)

Trigonal Planar

c)

Bent

d)

Trigonal Pyramidal

e)

Linear

19.

The geometry of a molecule with 2 bonded pairs of electrons and 2 lone pairs of electrons, AB2E2

a)

Tetrahedral

b)

Trigonal Planar

c)

Bent

d)

Trigonal Pyramidal

e)

Linear

20.
 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
21.
What is the VSEPR theory used to predict?
a)
Bond Strength
b)
Polarity
c)
Molecular Shape
d)
Electronegativity
22.

What is the molecular shape of the following?

a)

Hexahedral

b)

Square Pyramid

c)

Octahedral

d)

T-Shape

23.

What is the molecular shape of the following?

a)

T-Shape

b)

See-Saw

c)

Trigonal Planar

d)

Octahedral

24.

What is the shape of the following molecular structure?

a)

Trigonal Pyramidal

b)

Trigonal Planar

c)

T-Shape

d)

Tetrahedral

25.
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
26.
What is the measure of a tetrahedral bond angle?
a)
90 Degrees
b)
109.5 Degrees
c)
120 Degrees
d)
180 Degrees
27.

A molecular geometry with 3 bonding pairs is

a)

Trigonal pyramidal

b)

Trigonal planar

c)

Trigonal bipyramidal

d)

T-shaped

28.

Is T-shaped polar or non polar molecule?

a)

Polar molecule

b)

Non-polar molecule

29.

A molecular geometry with 2 lone pairs and 2 bonding pairs is

a)

Tetrahedral

b)

Trigonal pyramidal

c)

Bent

d)

Linear

30.

what is the arrangement of electron pair of a molecule with 3 lone pairs and 2 bonding pairs

a)

Linear

b)

Trigonal planar

c)

Octahedral

d)

Trigonal bipyramidal

31.

The bond angle of trigonal planar is

a)

90 degrees

b)

120 degrees

c)

Less than 120 degrees

d)

Less than 90 degrees

32.

XeF4 is a square planar. It has

a)

4 bonding pairs

b)

6 bonding pairs

c)

4 bonding pairs with 2 lone pairs

d)

5 bonding pairs with 1 lone pair

33.

What is the bond angle of see saw molecular geometry?

a)

90, 120 degrees

b)

90 degrees

c)

Less than 90 degrees, less than 120 degrees

d)

Less than 180 degrees

34.

HCN is a linear molecular geometry. What is the polarity of HCN molecule?

a)

Polar molecule

b)

Non-polar molecule

35.

Electron pair of square pyramidal are

a)

4 bonding pairs with 1 lone pair

b)

3 bonding pairs with 2 lone pairs

c)

2 bonding pairs with 3 lone pairs

d)

5 bonding pairs with 1 lone pair

36.

The bond angle of a molecule that has 3 bonding pairs with one lone pair is

a)

109.5 degrees

b)

120 degrees

c)

Less than 109.5 degrees

d)

Less than 120 degrees

37.

Classify the above molecule.

a)

Polar

b)

Non polar

38.
What geometry will this molecular structure have?: PH3
a)
bent
b)
tetrahedral
c)
linear
d)
trigonal pyramidal
39.
What geometry will this molecular structure have?: CCl4
a)
bent
b)
tetrahedral
c)
linear
d)
trigonal pyramidal
40.

Choose the correct shape for this molecule:

a)

Trigonal planar

b)

Trigonal pyramidal

c)

Bent

d)

Tetrahedral

41.

Is this molecule polar or non-polar?

a)

Non-polar

b)

Polar

42.

Is this molecule polar or non-polar?

a)

Non-polar

b)

Polar

43.
Choose the correct shape for this molecule:
a)
linear
b)
Trigonal pyramidal
c)
Bent
d)
Trigonal planar
44.

Choose the correct shape for this molecule:

a)

Bent

b)

Linear

c)

Tetrahedral

d)

Trigonal pyramidal

45.
Who could this molecule be?
a)
CH4
b)
CO2
c)
PCl5
d)
BF3
46.

Which Lewis Dot Model drawing correctly shows an O2 molecule?

a)
b)
c)
d)
47.
Who could this be? 
a)
CO2
b)
NH3
c)
H2S
d)
CH4
48.

To determine the molecular geometry of a compound by using VSEPR theory, double bond and triple bonds are considered as

a)

two or three bonding pairs

b)

two bonding pairs

c)

five bonding pairs

d)

one bonding pair

49.

Determine the electron pair arrangement and molecular geometry of XeF4 (Lewis structure is shown).

a)

tetrahedral ; tetrahedral

b)

linear ; linear

c)

octahedral ; square planar

d)

trigonal bipyramidal ; tetrahedral

50.
Which of the following shapes has an unshared pairs of electrons on the central atom? 
a)
Bipyramidal
b)
Bent
c)
Trigonal Planar
d)
Tetrahedral
51.

Which of the following polyatomic molecules are non polar?

a)

XeF2

b)

O3

c)

ICl4

d)

PF3

52.

Bond angle for trigonal pyramidal

a)

120o

b)

109.5o

c)

104.5o

d)

107.3o

53.

Is this molecule polar or non-polar?

a)

Polar

b)

Non-polar

54.
Which formula represents a polar molecule?
a)
H2
b)
H2O
c)
CO2
d)
CCl4
55.
What molecule could this be? 
a)
BF3
b)
CH4
c)
H2O
d)
CO2
56.
Who could this be?
a)
H2O
b)
NH3
c)
CO2
d)
CH4
57.
How many lone pairs of electrons are on the P atom in PF3?
a)
1
b)
2
c)
3
d)
0
58.

How many unshared pairs of electrons will a bent molecule have?

a)

0

b)

2

c)

3

d)

4

59.
In a polar bond, the more electronegative element will assume a partial ________ charge.
a)
positive
b)
negative
60.

Does the following reference Polar, Nonpolar, or both:

"affected by an electrical charge"?

a)

Polar

b)

Nonpolar

c)

Both

61.

What is the bond angle for the CH4 molecule?

a)

120°

b)

107°

c)

109.5°

d)

90°

62.
What are all the bond angles in the linear arrangement as predicted by VSEPR theory? 
a)
90°
b)
180°
c)
120°
d)
109.5°
63.

What is the correct shape of CHCl3?

a)

Bent

b)

Trigonal pyramidal

c)

Tetrahedral

d)

Trigonal planar

64.

Which of the following shape can be derived from a basic trigonal bipyramidal shape?

a)

PCl3

b)

CHCl3

c)

XeF2

d)

BrF5

65.

Which of the following shape cannot be derived from trigonal bypiramidal?

a)

Trigonal pyramidal

b)

T-shaped

c)

Linear

d)

tetrahedral

66.

Which molecule has non-linear shape?

a)

BeCl2

b)

HCN

c)

CO2

d)

PF5

67.

Application of VSEPR theory leads to the prediction that the shape of the IF3 is

a)

T-shaped

b)

Trigonal planar

c)

Bent

d)

Tetrahedral

68.

The bond angle of Cl-O-Cl in Cl2O molecule is approximately

a)

109o

b)

107o

c)

104o

d)

180o

69.

The pair that has the same geometry is

a)

NH2- and BeH2

b)

NH2- and H2O

c)

H2O and BeH2

d)

NH2- , H2O and BeH2

70.

According to the VSEPR theory, which of the following molecules should be trigonal bipyramidal?

a)

PCl3

b)

XeF3

c)

SF6

d)

PF5

71.

Choose the correct statement about ammonia molecule

a)

The molecular geometry is trigonal pyramidal

b)

The bond angles between H-N-H is 109o

c)

The N-H bond is polar but the molecule is non-polar

d)

Non of above statement is correct

72.
In the diagram shown, what is the total number of electrons shared in the bond between the two carbon atoms?
a)
2
b)
3
c)
4
d)
6
73.
Which of the following most likely represents the molecular geometry of water?
a)
A
b)
B
c)
C
d)
D
74.
Which has the greater electronegativity: 
H, N, O or F?
a)
H
b)
F
c)
N
d)
O
75.

Is AsF3 molecule polar or non-polar?

a)

Polar

b)

Non-polar

76.

Carbon dioxide has ___ bonds and is a ____ molecule.

a)

polar; polar

b)

polar; nonpolar

c)

nonpolar; nonpolar

d)

nonpolar; polar

77.

Opposite electrically charged areas _______________.

a)

repel each other

b)

attract each other

78.

The two (2) factors that determine if a molecule is Polar or Non-polar:

a)

The atoms's ionization energy

b)

the type of atoms in the molecule

c)

The atom's oxidation number

d)

the shape of the molecule

79.

A molecule is polar when

a)

geometry is asymmetrical with at least one polar bond

b)

geometry is symmetrical

c)

geometry is asymmetrical

d)

geometry is symmetrical with at least one polar bond

80.
Define electronegativity
a)
ability to donate electron
b)
tendency to lose electron
c)
tendency to lose electron to its neighbor
d)
tendency of atom to attract shared electron to itself
81.
CCl4 has polar bonds but is a non polar molecule. Why?
a)
bond polarity exist between atoms
b)
bond polarity between atoms cancel
c)
dipole moment exist between atoms in molecule
d)
difference in EN between C and Cl
82.

Which is the correct molecular structure for carbon dioxide (CO2)?

a)
b)
c)
d)
83.

What is the correct Lewis Dot Structure for ammonia NH3?

a)
b)
c)
d)
84.
Determine the electron geometry (eg) and molecular geometry (mg) of XeF4 (Lewis structure is shown) .
a)
eg = tetrahedral, mg = tetrahedral
b)
eg = linear, mg = linear
c)
eg = octahedral, mg = square planar
d)
eg = trigonal bipyramidal, mg = tetrahedral
85.

What is the shape of the following molecular structure?

a)

Trigonal Pyramidal

b)

Trigonal Planar

c)

T-Shape

d)

Tetrahedral

86.
How many lone pairs are in this molecule's structure?
a)
6
b)
2
c)
0
d)
4
87.
What molecular shape is the structure shown here? (BeCl2)
a)
linear
b)
bent
c)
trigonal planar
d)
tetrahedral
88.
What molecular shape is the structure shown here? (NH4+)
a)
linear
b)
trigonal planar
c)
tetrahedral
d)
trigonal pyramidal
89.

Which is true of this molecule? (select ALL that apply)

a)

Trigonal planar

b)

Trigonal pyramidal

c)

<109.5o bond angles

d)

<120o bond angles

e)

polar

90.

Which is true of BCl3? (select ALL that apply)

a)

Trigonal planar

b)

120o bond angles

c)

polar

d)

nonpolar

e)

Trigonal pyramidal

91.

How many lone pairs should the nitrogen have?

a)

0

b)

1

c)

2

d)

3

92.

How many lone pairs should each of the oxygens have?

a)

0

b)

1

c)

2

d)

3

93.

Which is true of this molecule? (select ALL that apply)

a)

bent, 109.5o bond angles

b)

bent, 120o bond angles

c)

linear, 180o bond angles

d)

polar

e)

nonpolar

94.
How many total lone pairs would be found in the Lewis structure for C2H4
a)
0
b)
2
c)
4
d)
6
95.
How many total lone pairs would be found in the Lewis structure for formaldehyde (HCOH)?
a)
0
b)
1
c)
2
d)
3
96.
What is the reason that the H-C-H bond angle in CH4 is not 90◦ ?
a)
The molecule is not planar
b)
The bond angles are difficult to measure accurately
c)
The carbon atom is so much larger than the hydrogen atoms.
d)
There is a lone pair on the carbon atom. 
97.
The electronic geometry of a boron trichloride molecule is _____.
a)
Tetrahedral planar 
b)
Linear 
c)
Trigonal planar
d)
Pyramidal
98.

What are the bond angles between each H in H2O?

a)

180

b)

120

c)

360

d)

104.5

99.

What are the bond angles between each H in CH4?

a)

109.5

b)

120

c)

180

d)

360

100.

Which of these molecules will have this molecular geometry?

a)

PCl5

b)

SF6

c)

CF5

d)

SnF4

101.

Which of the following will have this geometry?

a)

H2S

b)

CCl4

c)

NH3

d)

HCl

102.

Which of the following molecules has this molecular geometry?

a)

PCl5

b)

SiO4

c)

SCl6

d)

CH4

103.

Which of the following molecules will have this molecular geometry?

a)

SF4

b)

CCl4

c)

SiO4

d)

CF2

104.

Which of these molecules will have this molecular geometry?

a)

BCl3

b)

NH3

c)

CO2

d)

CCl4

105.

Which of these structures has one un-shared pairs of electrons?

a)
b)
c)
d)
106.

Which of the following molecular geometries has bond angles of 109.5 degrees?

a)

bent

b)

tetrahedral

c)

octahedral

d)

linear

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