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- 1. Multiple Choice
Which of the following statements is FALSE?
Ionic bonding results from the transfer of electrons from one atom to another.
Dipole moments result from the unequal distribution of electrons in a molecule.
The electrons in a polar bond are found nearer to the more electronegative element.
A molecule with very polar bonds can be nonpolar.
Linear molecules cannot have a net dipole moment.
- 2. Multiple Choice
Which of the following bonds is least polar?
C--O
O--H
S--Cl
Br--Br
I--F
- 3. Multiple Choice
Which of the following molecules has a dipole moment?
CO2
SO2
CH4
I2
none of these
- 4. Multiple Choice
Choose the molecule with the strongest bond.
CH4
HF
H2O
NH3
all are equal
- 5. Multiple Choice
Of the following, which molecule has the largest bond angle?
O3
OF2
HCN
H2O
more than one of these has equally large bond angles
- 6. Multiple Choice
The Cl–Kr–Cl bond angle in KrCl4 is closest to
90o
180o
120o
109o
360o
- 7. Multiple Choice
Which of the following atoms cannot exceed the octet rule in a molecule?
N
S
P
I
all atoms must obey the octet rule
- 8. Multiple Choice
Choose the electron dot formula that most accurately describes the bonding in CS2.
- 9. Multiple Choice
Complete the Lewis structure for the molecule shown. Then decide how many sigma and pi bonds there are in the molecule.
6 sigma, 0 pi
12 sigma, 2 pi
12 sigma, 3 pi
13 sigma, 3 pi
16 sigma, 0 pi
- 10. Multiple Choice
In the Lewis structure for ICl2–, how many lone pairs of electrons are around the central iodine atom?
0
1
2
3
4
- 11. Multiple Choice
What type of structure does the XeOF2 molecule have?
trigonal planar
trigonal pyramidal
tetrahedral
T-shape
octahedral
- 12. Multiple Choice
Which ion is planar?
NH4+
CO32-
SO32-
ClO3-
all are planar
- 13. Multiple Choice
According to VSEPR theory, which of the following species has a square planar molecular structure?
TeBr4
BrF3
IF5
SCl2
XeF4
- 14. Multiple Choice
How many of the following have all of their atoms in the same plane? H2C=CH2 F2O H2CO NH3 CO2 BeCl2 H2O2
3
4
5
6
7
- 15. Multiple Choice
What is the shape of PF5?
trigonal pyramidal
trigonal bipyramidal
square planar
T-shape
octahedral
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