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Chapter 1: Electronic Structure and Covalent Bonding
Quizzes
Quiz 2
Quiz 2
This activity contains 15 questions.
What are the bond angles in NH
4
+
?
107.3°
90°
104.5°
120°
109.5°
What atomic orbitals overlap to form the C-H bonds in ethane?
a 1
s
atomic orbital of H and a 2
sp
2
atomic orbital of C
a 1
s
atomic orbital of H and a 2
sp
atomic orbital of C
a 1
p
atomic orbital of H and a 2
p
atomic orbital of C
a 1
s
atomic orbital of H and a 2
sp
3
atomic orbital of C
a 1
s
atomic orbital of H and a 2
s
atomic orbital of C
What orbitals overlap to form the carbon–carbon bond in ethane?
two carbon 2
sp
3
molecular orbitals
two 2
sp
3
atomic orbitals
two carbon 2
sp
2
atomic orbitals
two 2
s
atomic orbitals
two 2
p
x
atomic orbitals
What is the angle between the three
sp
2
atomic orbitals of carbon?
90.0°
180.0°
109.5°
145.0°
120.0°
How is the electronic configuration of the C atom in ethyne represented after promotion and hybridization?
1
s
2
2
sp
x
1
2
sp
x
1
2
p
y
1
2
p
z
1
1
s
2
2(
sp
2
)
1
2(
sp
2
)
1
2(
sp
2
)
1
2
p
z
1
1
s
2
2
s
2
2
p
x
1
2
p
y
1
2
p
z
0
1
s
2
2(
sp
3
)
1
2(
sp
3
)
1
2(
sp
3
)
1
2(
sp
3
)
1
1
s
2
2(
sp
4
)
2
2(
sp
4
)
1
2(
sp
4
)
1
2(
sp
4
)
1
Which of the following is a true statement?
A double bond is stronger than a triple bond.
A sigma bond is weaker than a pi bond.
Bromine is more electronegative than chlorine.
A double bond is longer than a triple bond.
Nitrogen is more electronegative than oxygen.
What is the electronic configuration of a lithium ion?
1
s
2
2
s
1
1
s
2
1
s
2
2
s
2
2
p
x
1
1
s
1
1
s
2
2
s
2
What atomic orbitals of carbon are used for the formation of the sigma bond component of the C-C triple bond?
2
sp
3
atomic orbitals
2
sp
atomic orbitals
2
sp
2
atomic orbitals
2
s
atomic orbitals
2
p
atomic orbitals
What is the hybridization of the C atom in the methyl cation?
C atom is
sp
hybridized.
C atom is not hybridized.
C atom is
sp
3
hybridized.
C atom is
sp
2
hybridized.
C atom is
s
2
p
hybridized.
In what kind of atomic orbital is the unpaired electron of the methyl radical?
an
sp
3
atomic orbital
an
s
atomic orbital
a
p
atomic orbital
an
sp
atomic orbital
an
sp
2
atomic orbital
What kind of atomic orbital is occupied by the nonbonded electrons of the methyl anion?
an
s
atomic orbital
an
sp
2
atomic orbital
an
sp
atomic orbital
an
sp
3
atomic orbital
a
p
atomic orbital
What are the relative lengths of the C-H bonds in ethane, ethene, and ethyne?
CH(ethane) < CH(ethene) = CH(ethyne)
CH(ethane) = CH(ethene) = CH(ethyne)
CH(ethane) = CH(ethene) > CH(ethyne)
CH(ethane) > CH(ethene) > CH(ethyne)
CH(ethane) < CH(ethene) < CH(ethyne)
What is the hybridization of the oxygen atom in water?
sp
2
p
s
sp
3
sp
Which of the following is
not
a true statement concerning bonds formed by
sp
3
-,
sp
2
-, and
sp
-hybridized orbitals?
The more
s
character, the stronger the bond.
The more
s
character, the smaller the bond angle.
The more
s
character, the larger the bond angle.
An
sp
2
orbital has more
s
character than an
sp
3
orbital.
The more
s
character, the shorter the bond.
What is the hybridization of the carbon atom in CO
2
?
p
sp
2
s
sp
3
sp
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