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Lewis structures VSEPR IMF POLARTITY

Total questions: 50

Worksheet time: 35mins

Name
Class
Date
1.
What is the VSEPR theory used to predict?
a)
Bond Strength
b)
Polarity
c)
Molecular Shape
d)
Electronegativity
2.
Which molecule would have this shape?
a)
BF3
b)
CH4
c)
PCl5
d)
CO2
3.
What molecule could this be? 
a)
BF3
b)
CH4
c)
H2O
d)
CO2
4.
Who could this molecule be?
a)
CH4
b)
CO2
c)
PCl5
d)
BF3
5.

What shape would PH3 have?

a)

Trigonal Planar

b)

Trigonal pyramidal

c)

Bent

d)

Linear

6.

Is this molecule polar?

a)

No

b)

Yes

7.

Is this molecule polar?

a)

Yes

b)

No

8.

What shape would this have?

a)

Trigonal planar

b)

Pyramidal

c)

Tetrahedral

d)

Bent

9.
Choose the correct shape for this molecule:
a)

Trigonal planar

b)

Trigonal pyramidal

c)

Tetrahedral

d)

Linear

e)

Bent

10.
What molecular shape is the structure shown here? (H2O)
a)
tetrahedral
b)
trigonal planar
c)
bent
d)
trigonal pyramidal
11.

What is the molecular geometry/shape of a molecule with 3 shared pairs and 0 unshared pairs?

a)

Linear

b)

Trigonal Planar

c)

Trigonal Pyramidal

d)

Tetrahedral

e)

Bent

12.

What is the molecular geometry/shape of this molecule

a)

Linear

b)

Trigonal Planar

c)

Trigonal Pyramidal

d)

Tetrahedral

e)

Bent

13.

What is the molecular geometry/shape of this molecule

a)

Linear

b)

Trigonal Planar

c)

Trigonal Pyramidal

d)

Tetrahedral

14.

What IMF are present

a)

Dipole Dipole

b)

London Dispersion Forces

c)

Hydrogen Bonding

15.

What IMF are present

a)

Dipole Dipole

b)

London Dispersion Forces

c)

Hydrogen Bonding

16.

What IMF are present

a)

Dipole Dipole

b)

London Dispersion Forces

c)

Hydrogen Bonding

17.

What IMF are present

a)

Dipole Dipole

b)

London Dispersion Forces

c)

Hydrogen Bonding

18.

What IMF are present

a)

Dipole Dipole

b)

London Dispersion Forces

c)

Hydrogen Bonding

19.

What is the molecular geometry/shape of this molecule

a)

Linear

b)

Trigonal Planar

c)

Trigonal Pyramidal

d)

Tetrahedral

e)

Bent

20.

What is the molecular geometry/shape of this molecule

a)

Linear

b)

Trigonal Planar

c)

Trigonal Pyramidal

d)

Tetrahedral

e)

Bent

21.

What is the molecular geometry/shape of this molecule

a)

Linear

b)

Trigonal Planar

c)

Trigonal Pyramidal

d)

Tetrahedral

e)

Bent

22.

Is this molecule polar?

a)

Yes

b)

No

23.

Is this a valid Lewis Structure?

a)

Yes

b)

No

24.

What is the molecular geometry/shape of this molecule

a)

Linear

b)

Trigonal Planar

c)

Trigonal Pyramidal

d)

Tetrahedral

e)

Bent

25.

What is the molecular geometry/shape of this molecule

a)

Linear

b)

Trigonal Planar

c)

Trigonal Pyramidal

d)

Tetrahedral

e)

Bent

26.

Which of the following factors plays an important role in the identification of specific intermolecular forces in a molecule? Select all

a)
bond type
b)
density
c)
solubility
d)
molecular polarity
27.
Which of the following molecules contains only London dispersion forces?
a)
CF4
b)
HCl
c)
H2O
d)
MgO(aq)
28.
Which of the following molecules predominantly consists of dipole-dipole forces?
a)
HF
b)

N2

c)
O2
d)

HCl

29.
Which of the following molecules would have the lowest boiling point?
a)
CH4
b)
C2H6
c)
C3H8
d)
C4H10
30.

Chlorine is a gas at STP, while bromine is a liquid at STP. Which statement correctly explains these observations?

a)

Bromine has weaker intermolecular forces than Chlorine does

b)

Bromine has greater molecular polarity than Chlorine does

c)

Bromine has weaker molecular polarity than Chlorine does

d)

Bromine has stronger intermolecular forces than Chlorine does

31.
Which of the following molecules has hydrogen bonding?
a)
HCl
b)
HI
c)
HF
d)
HBr
32.

What are the 2 Intermolecular forces for: NH3

a)

London dispersion Forces

b)

Dipole dipole

c)

Hydrogen bonding

d)

Ions

33.

Which substance would have the weakest intermolecular forces of attraction?

a)

CH4

b)

NaCl

c)

H2O

d)

MgF2

34.

Which of the following will NOT have hydrogen bonding?

a)
b)
c)
d)
35.

Does NH3 or PH3 have a higher boiling point?

(Hint: identify the types of IMF's present for each)

a)

NH3 because it has the strongest IMF's

b)

PH3 because it has the strongest IMF's

c)

NH3 because it has the weakest IMF's

d)

PH3 because it has the weakest IMF's

36.

The strength of temporary dipoles (LDF):

a)
increases with the size of molecules
b)
is greater than intremolecular forces
c)
is the strongest intermolecular force
37.

Which type of IMF is responsible for the attraction pictured above?

a)

Dipole-Dipole Interaction

b)

Ion-Dipole Interaction

c)

Hydrogen Bonds

d)

Covalent Bond

e)

Ionic Bond

38.

Which type of IMF is responsible for the attraction pictured above?

a)

Dipole-Dipole Interaction

b)

Ion-Dipole Interaction

c)

Hydrogen Bonds

d)

Covalent Bond

e)

Ionic Bond

39.

Which of the following is the correct, balanced half -reaction for the oxidation of Cu to Cu+2?

a)

Cu ⟶ Cu+2

b)

Cu + 2 e- ⟶ Cu+2

c)

Cu - 2e- ⟶ Cu+2

d)

Cu ⟶ Cu+2 + 2 e-

40.

Fe + 3e- →Fe what charge should be here

a)

+3

b)

-3

c)

0

d)

-1

41.

Based on your knowledge of ioninc bonding what will Aluminum do in order to lower it's energy and become more stable?

a)

Gain 3 electrons and become Al+3

b)

Lose 3 electrons and become Al+3

c)

Gain 5 electrons and become Al+3

d)

Nothing it is stable as Al0

42.

Based on your knowledge of ioninc bonding what will Oxygen do in order to lower it's energy and become more stable?

a)

Gain 2 electrons and become O-2

b)

Lose 2 electrons and become O-2

c)

Lose 6 electrons and become O-2

d)

Nothing it is stable as O0

43.

What process is needed to make the stable for of Li

a)

Oxidation

b)

Reduction

44.

What process is needed to make the stable for of Cl

a)

Oxidation

b)

Reduction

45.
Reduction happens at the 
a)
anode
b)
cathode
c)
salt bridge
d)
voltmeter
46.
Oxidation happens at the
a)
anode
b)
cathode
c)
salt bridge
d)
voltmeter
47.
In which direction does electricity flow in a voltaic cell (battery)?
a)
Electrons flow from the cathode to the anode
b)
Electrons flow from left to right
c)
Electrons flow from anode to cathode
d)
Electrons flow from right to left
48.

The overall reaction in an electrochemical cell is

Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s)

As the reaction in this cell takes place, the

a)

mass of the Zn(s) electrode decreases

b)

Zn2+(aq) concentration remains the same

c)

mass of the Cu(s) electrode decreases

d)

Cu2+(aq) concentration remains the same

49.

A diagram of a chemical cell and an equation are shown below.

Pb(s) + Cu2+(aq) → Pb2+(aq) + Cu(s)

When the switch is closed, electrons will flow from

a)

the Pb(s) to the Cu(s)

b)

the Cu(s) to the Pb(s)

c)

the Pb2+(aq) to the Pb(s)

d)

the Cu2+(aq) to the Cu(s)

50.

A diagram of a chemical cell and an equation are shown below.

Pb(s) + Cu2+(aq) → Pb2+(aq) + Cu(s)

When the switch is closed, which of the following are true

select all true answers

a)

The Pb electrode gains mass the Cu electrode loses mass

b)

The Cu electrode gains mass the Pb electrode loses mass

c)

Anions move out the left side of salt bride and Cations out the right side

d)

Cations move out the left side of salt bride and Anions out the right side

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