Organic Chemistry: Mechanistic Patterns is the very first introductory organic chemistry title that holistically focuses on a mechanistic approach; an approach that has proven to achieve a deeper understanding of chemical reactivity. This mechanistic approach to the dynamic world of organic chemist...
CHAPTER 1 - Carbon and Its
Compounds
Organic Chemistry Mechanistic Patterns 1st
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1. Which of the following represents the ground state electron configuration for a O2- ion?
a. 1s22s22p4
b. 1s22s22p2
c. 1s22s22p6
d. 2s22p4
ANSWER: c
2. How many valence electrons does a nitrogen atom contain?
a. 2
b. 3
c. 5
d. 7
ANSWER: c
3. How many valence electrons does an O2- ion contain?
a. 2
b. 6
c. 8
d. 10
ANSWER: c
4. What is the Lewis structure of a compound that has the formula of CCl3 and contains 24 valence electrons?
a.
b.
c.
d.
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CHAPTER 1 - Carbon and Its
Compounds
ANSWER: d
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CHAPTER 1 - Carbon and Its
Compounds
5. How many bonded and non-bonded electrons does a molecule with no formal charges and the formula C2H4O2
contain?
a. 4 bonded, 4 non-bonded
b. 7 bonded. 4 non-bonded
c. 7 bonded, 5 non-bonded
d. 4 bonded, 7 non-bonded
ANSWER: b
Figure 1
6. Referring to Figure 1, what is the formal charge of the oxygen atom at I?
a. +1
b. 0
c. -1
d. -2
ANSWER: b
7. Referring to Figure 1, what is the formal charge of the oxygen atom at II?
a. +1
b. 0
c. -1
d. -2
ANSWER: c
8. Referring to Figure 1, what is the formal charge of the oxygen atom at III?
a. +1
b. 0
c. -1
d. -2
ANSWER: a
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CHAPTER 1 - Carbon and Its
Compounds
9. What best represents a C-H bond in CH4?
a. s-sp3 orbital overlap
b. sp3-sp3 orbital overlap
c. s-s orbital overlap
d. p-p orbital overlap
ANSWER: a
10. What best represents the C-C bond in C2H6?
a. s-sp3 orbital overlap
b. sp3-sp3 orbital overlap
c. s-s orbital overlap
d. p-p orbital overlap
ANSWER: b
Figure 2
The following questions refer to the structure of heroin (shown below).
11. Referring to Figure 2, what is the hybridization of the nitrogen atom?
a. p
b. sp
c. sp2
d. sp3
ANSWER: d
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