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AP quiz #2 Review Formal charge & VSPER

Total questions: 21

Worksheet time: 24mins

Name
Class
Date
1.
Calculate the Formal Charge for the Oxygen Labeled 1 
a)
-1
b)
+1
c)
0
d)
-2
2.
Calculate the Formal Charge for the Oxygen Labeled 2 
a)
-1
b)
+1
c)
0
d)
-2
3.
What is the formal charge for Selenium
a)
+1
b)
-1
c)
0
d)
-2
4.
Is this molecule polar or non polar?
a)
Polar
b)
Non Polar
5.

How many total valence electrons does SF4 have?

a)

28

b)

22

c)

34

d)

6

6.

Draw the Lewis Dot structure for PCl5 and determine the predicted molecular geometry

a)

octahedral

b)

trigonal pyramidal

c)

seesaw

d)

trigonal bipyramidal

7.

Which of the following images represents an ionic compound?

a)
b)
c)
d)
8.

Based on formal charge and the the Lewis dot structure rules, which of the following would be correct Lewis structure for N2O?

a)

A

b)

B

c)

C

d)

C

9.

Which change to an ionic solid would lead to a decrease in the density of the solid compound.

a)

Replace the anion in the compound with one that has a greater positive charge

b)

Replace the cation in the compound with one that has a greater negative charge

c)

Replace the anion in the compound with one that has a greater atomic radius

d)

Replace the anion in the compound with one that has a smaller atomic radius

10.

What is the molecular geometry of SO2?

a)

bent <120°

b)

bent <109.5°

c)

linear

d)

trigonal planar

11.

What is the molecular geometry of SF4?

a)

tetrahedral

b)

trigonal pyramidal

c)

trigonal bipyramidal

d)

seesaw

12.
Bond angle for trigonal pyramidal
a)
120o
b)
109.5o
c)
104.5o
d)
107o
13.

What is the hybridization of this molecule shown above

a)

sp

b)

sp2

c)

sp3

d)

sp4

14.

What is the bond angle for the CH4 molecule?

a)

120°

b)

107°

c)

109.5°

d)

90°

15.
Choose the correct shape for this molecule:
a)
Trigonal planar
b)
Trigonal pyramidal
c)
Tetrahedral
d)
Linear
16.
What type of bonding typically exhibits the greatest melting point and boiling point?
a)
ionic
b)
metallic
c)
polar covalent
d)
nonpolar covalent
17.
If you want to have a high Coulombic attraction you would want...
a)
high charge, high distance
b)
low charge, low distance
c)
low charge, high distance
d)
high charge, low distance
18.

In the reaction shown below does the bond hybridization of the carbon atoms change?

CH4 + 2O2 --> 2H2O + CO2

a)

No , it stays the same , sp3

b)

No, it stays the same sp2

c)

Yes it changes from sp to sp3

d)

Yes it changes from sp3 to sp

19.

Using formal charge rules, identify where the negative charge would be located on the this SO2 molecule?

a)

On the O atom #1

b)

On the O atom #2

c)

On the sulfur atom

d)

There is no charge on a this molecule, it is non polar

20.

Choose the most likely bond angle for this molecule:

a)

107°

b)

109.5°

c)

90°

d)

120°

e)

180°

21.

Which of the following molecules would hvae the largest dipole moment?

a)

CH3Cl

b)

CH2Cl2

c)

SiH2Cl2

d)

CCl4