Test Bank for Organic Chemistry, 8th Edition

Name: Test Bank for Organic Chemistry, 8th Edition
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Author: Julian Cooper

Test Bank for Organic Chemistry, 8th Edition delivers an efficient way to prepare, covering all important topics with clarity and precision.

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1
Chapter 1—Structure and Bonding
SHORT ANSWER
1. Give the ground-state electron configuration for carbon (atomic number 6).
ANS:
1s2 2s2
2p x1 2p y1 or 1s2 2s2 2p2
2. Give the ground-state electron configuration for fluorine (atomic number 9).
ANS:
1s2 2s2
2p x2 2p y2 2p z1 or 1s2 2s2 2p5
3. Give the ground-state electron configuration for magnesium (atomic number 12).
ANS:
1s2 2s2
2p6 3s2
4. How many electrons does silicon have in its valence shell?
ANS:
four
Exhibit 1-1
Write valid Lewis (electron-dot) structures for each formula below. Show all electrons as dots and
show all non-bonding electrons.
5. C2 Cl 4 tetrachloroethylene
ANS:
6. CO2 carbon dioxide
ANS:
7. CH4 O methanol

Structure and Bonding
2
ANS:
Exhibit 1-2
Consider the structure of urea, shown below, to answer the following question(s).
8. Refer to Exhibit 1-2. Fill in any non-bonding valence electrons that are missing from the
line-bond structure.
ANS:
9. Refer to Exhibit 1-2. The carbon atom in urea is:
a. sp3 hybridized
b. sp2 hybridized
c. sp hybridized
d. not hybridized
ANS:
b
10. Refer to Exhibit 1-2. The predicted NH2−C=O bond angle in urea is:
a. 109.5°
b. 120°
c. 180°
d. not predictable
ANS:
b

Chapter 1
3
Exhibit 1-3
Determine the hybridization for the indicated atoms in each structure below.
11. Refer to Exhibit 1-3. The hybridization of this oxygen atom (A) is ______.
ANS:
sp2
12. Refer to Exhibit 1-3. The hybridization of this oxygen atom (B) is ______.
ANS:
sp3
13. Refer to Exhibit 1-3. The hybridization of this carbon atom (C) is ______.
ANS:
sp3
14. Refer to Exhibit 1-3. The hybridization of this carbon atom (D) is ______.
ANS:
sp
15. The molecular formula C 2 H4 O can be converted into three-line bond (Kekulé) structures that
are consistent with valence rules.
a. b. c. d.
a. Which one of the Kekulé structures is not consistent with valence rules?
b. Explain why the structure you chose in part a is not consistent with valence rules.
ANS:
a. d
b. The carbon bonded to the oxygen atom in structure d is pentavalent; it has 10 valence
electrons. Carbon can only have eight valence electrons. In addition, the other carbon
has only six valence electrons when it would prefer to have eight.

Structure and Bonding
4
16. The original question was combined with #15. This placeholder question is here to maintain
the integrity of the numbering system between the printed copy and ExamView. Therefore,
it has been marked "do not use on test" in ExamView's question information dialog. As a
result, this placeholder question is automatically prevented from being chosen as a test
question.
ANS:
Answer not provided.
17. Convert the following structure to a skeletal drawing and give its molecular formula.
ANS:
Molecular formula: C5 H7 Br
18. Draw an orbital picture for acetylene, C2H2 . Clearly label each bond type and indicate the
type of orbitals involved in each bond.
ANS:

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Test Bank for Organic Chemistry, 8th Edition

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