QOI 0809 STRUCTURE
Name___________________________________
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
1) An orbital can be described by its __________, which is the mathematical description of the
shape of the electron wave as it oscillates.
1)
2) The electron density at any point is proportional to the __________ of the electron wave at
that point.
2)
3) When orbitals on different atoms interact, __________ are produced.
3)
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
4) Consider the interaction of two hydrogen 1s atomic orbitals of the same phase. Which of the
statements below is an incorrect description of this interaction?
A) A sigma bonding molecular orbital is formed.
B) The molecular orbital formed is lower in energy than a hydrogen 1s atomic orbital.
C) The molecular orbital formed has a node between the atoms.
D) The molecular orbital formed is cylindrically symmetric.
E) A maximum of two electrons may occupy the molecular orbital formed.
4)
ESSAY. Write your answer in the space provided or on a separate sheet of paper.
5) What kind of molecular orbital (σ, σ*, π, or π*) results when the two atomic orbitals shown below interact in the
manner indicated?
6) What kind of molecular orbital (σ, σ*, π, or π*) results when the two atomic orbitals shown below interact in the
manner indicated?
7) What kind on molecular orbital (σ, σ*, π, or π*) results when the two atomic orbitals shown below interact in
the manner indicated?
1
8) What kind of molecular orbital (σ, σ*, π, or π*) results when the two atomic orbitals shown below interact in the
manner indicated?
9) What kind of molecular orbital (σ, σ*, π, or π*) results when the two atomic orbitals shown below interact in the
manner indicated?
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
10) A __________ bond results when parallel p orbitals overlap sideways.
10)
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
11) Which of the following statements about π molecular orbitals is/are correct?
A) π molecular orbitals are cylindrically symmetric.
B) Most of the electron density in a π molecular orbital is centered above and below the
internuclear axis.
C) When two atoms are connected by a double bond, both of these bonds are π bonds.
D) Both statements B and C are correct.
E) Statements A, B, and C are all correct.
11)
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
12) The HCN bond angle in hydrogen cyanide (HCN) is __________.
12)
13) The HCH bond angle in propane (CH3 CH2CH3 ) is __________.
13)
14) The CCO bond angle in acetone (CH3 COCH3) is __________.
14)
15) Boron trifluoride (BF3 ) is a molecule in which the boron atom is __________ hybridized
and the FBF bond angle is __________.
15)
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
16) Triethylamine [(CH3 CH2 )3N] is a molecule in which the nitrogen atom is __________ hybridized
and the CNC bond angle is __________.
A) sp2 , >109.5°
B) sp2 , <109.5°
C) sp3 , >109.5°
D) sp3 , <109.5°
E) sp, 109.5°
2
16)
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
17) Structures which differ only in rotations about a single bond are called __________.
17)
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
18) Choose the correct hybridization for the atom indicated in the molecule below.
CH3 CH2CH2 CH3
↑
A) sp
C) sp3
18)
B) sp2
D) none of the above
19) Choose the correct hybridization for the atom indicated in the molecule below.
CH3 CH2CH2 CH3
↑
A) sp
C) sp3
19)
B) sp2
D) none of the above
20) Choose the correct hybridization for the atom indicated in the molecule below.
20)
B) sp2
D) none of the above
A) sp
C) sp3
21) Choose the correct hybridization for the atom indicated in the molecule below.
21)
B) sp2
D) none of the above
A) sp
C) sp3
22) Choose the correct hybridization for the atom indicated in the molecule below.
(CH3 )2CHCN
↑
A) sp
C) sp3
B) sp2
D) none of the above
3
22)
23) Choose the correct hybridization for the atom indicated in the molecule below.
(CH3 )2CHCN
↑
A) sp
C) sp3
23)
B) sp2
D) none of the above
24) Choose the correct hybridization for the atom indicated in the molecule below.
24)
B) sp2
D) none of the above
A) sp
C) sp3
25) Choose the correct hybridization for the atom indicated in the molecule below.
25)
B) sp2
D) none of the above
A) sp
C) sp3
26) The structure of vitamin C is shown below. Which one of the following statements concerning this
structure is not correct?
A) The molecule contains 2 pi bonds.
B) The molecule contains 1 sp2 hybridized oxygen atom.
C) The molecule contains 3 sp2 hybridized carbon atoms.
D) The molecule can be classified as an aldehyde.
E) The molecule contains more than one hydroxyl group.
4
26)
ESSAY. Write your answer in the space provided or on a separate sheet of paper.
27) The synthetic steroid RU-486 is shown below. How many pi bonds does RU-486 contain?
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
28) Choose the functional group which is not represented in the structure of RU-486.
A) alkyne
B) alcohol
C) ketone
D) amine
28)
E) ether
ESSAY. Write your answer in the space provided or on a separate sheet of paper.
29) Do any of the six-membered rings present in RU-486 have the structural features which characterize an
aromatic hydrocarbon?
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
30) Which of the molecules below is an ester?
A) CH3 CH2CH(CH3 )2
B) CH3 OCH2 CH2 CH3
C) CH3 COOH
D) CH3 COOCH3
E) HC≡CCH3
30)
ESSAY. Write your answer in the space provided or on a separate sheet of paper.
31) Which of the molecules below has the higher boiling point? Briefly explain your choice.
CH3 CH2CH2 OH
or
CH3 CH2OCH3
32) Which of the molecules below has the higher boiling point? Briefly explain your choice.
(CH3 )3N
or
CH3 CH2 CH2 NH2
33) Which of the molecules below has the higher boiling point? Briefly explain your choice.
CH3 CH2CH2 CH2 CH3
or
(CH3 )2 CHCH2CH3
34) Would you expect sodium chloride (NaCl) to be highly soluble in the organic solvent hexane
(CH3 CH2CH2 CH2 CH2 CH3)? Briefly explain your answer.
5
35) Which compound is more soluble in water? Briefly explain your choice.
CH3 OCH3
or CH3 CH2 OH
36) Which compound is more soluble in water? Briefly explain your choice.
(CH3 )2NH or
CH3 CH2 CH3
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
37) Which of the molecules below can be properly called an amine?
A) CH3 CN
B) CH3 COOH
C) CH3 CH2CH2 OH
D) CH3 CH2NHCH3
E) CH3 CH2CH2 NO2
37)
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
38) The molecule shown below contains __________ pi bonds and __________ sigma bonds.
38)
ESSAY. Write your answer in the space provided or on a separate sheet of paper.
39) Are the two compounds shown below best described as cis-trans isomers, constitutional isomers, or not
isomeric?
40) Are the two compounds shown below best described as cis-trans isomers, constitutional isomers, or not
isomeric?
6
41) Are the two compounds shown below best described as cis-trans isomers, constitutional isomers, or not
isomeric?
42) Are the two compounds shown below best described as cis-trans isomers, constitutional isomers, or not
isomeric?
43) Are the two compounds shown below best described as cis-trans isomers, constitutional isomers, or not
isomeric?
44) Are the two compounds shown below best described as cis-trans isomers, constitutional isomers, or not
isomeric?
45) Are the two compounds shown below best described as cis-trans isomers, constitutional isomers, or not
isomeric?
46) Are the two compounds shown below best described as cis-trans isomers, constitutional isomers, or not
isomeric?
47) Does the CO bond in methanol (CH3OH) possess an individual bond dipole moment? Briefly explain your
answer.
7
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
48) Which one of the molecules shown below has no net molecular dipole moment?
A) CH3 Cl
B) H2CCH2
C) CH2 O
D) CH2 Cl2
E) CH3 OH
48)
49) Which one of the molecules shown below has a net molecular dipole moment?
A) CCl4
B) CO2
C) CH3 CCl3
D) BeCl2
49)
ESSAY. Write your answer in the space provided or on a separate sheet of paper.
50) Draw the structure of the isomeric form of 1,2-dichloroethene (CHClCHCl) which has no net dipole moment.
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
51) Choose the term below which best describes the geometry of acetylene (HCCH).
A) trigonal bipyramidal
B) trigonal
C) tetrahedral
D) square planar
E) linear
51)
52) Which functional groups below indicate the presence of two atoms connected by a triple bond?
A) alkyne
B) alkene
C) nitrile
D) ester
E) both A and C
52)
53) Which of the class of organic compound below contains a carbonyl group as a part of its structure?
A) aldehyde
B) ketone
C) carboxylic acid
D) ester
E) all of the above
53)
ESSAY. Write your answer in the space provided or on a separate sheet of paper.
54) What type of intermolecular force results from the attraction of coordinated temporary dipoles induced in
adjacent molecules?
55) Circle the coplanar atoms in 1-ethylcyclopentene shown below.
8
56) Draw the structure of any hydrocarbon alkane which contains 5 carbon atoms.
57) Draw the structure of any hydrocarbon alkene which contains 4 carbon atoms.
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
58) Which of the functional groups below contain a hydroxyl group as a part of their structure?
A) aldehyde
B) alcohol
C) carboxylic acid
D) amine
E) B and C only
58)
ESSAY. Write your answer in the space provided or on a separate sheet of paper.
59) Does 1,1-dichloroethene (Cl2 CCH2) have a net molecular dipole moment? If it does, draw the molecule and
indicate the direction of this molecular dipole moment.
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
60) The CCC bond angle in allene (H2 CCCH2) is __________.
60)
61) The HCH bond angle in allene (H2 CCCH2 ) is __________.
61)
ESSAY. Write your answer in the space provided or on a separate sheet of paper.
62) Provide the hybridization of oxygen in dimethyl ether (CH3 OCH3 ) and estimate the COC bond angle.
63) Provide the hybridization of oxygen in acetaldehyde (CH3 CHO) and estimate the OCH bond angle.
64) Explain why the free rotation about the carbon-carbon bond in CH3 CH3 is not present in CH2 CH2.
65) Draw the three-dimensional structure of chloroform (CHCl3 ) and show the direction of the molecular dipole
moment.
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
66) Which of the molecules below can hydrogen bond to another of the same compound?
A) CH3 CH2OCH2 CH3
B) CH3 CH2COOCH3
C) (CH3 CH2)2 CHOH
D) CH3 CH2COCH2 CH3
E) all of the above
ESSAY. Write your answer in the space provided or on a separate sheet of paper.
67) What is the name of the characteristic functional group found in the molecule CH3CH2 COOH?
9
66)
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
68) The molecule shown below contains __________ sigma bonds and __________ pi bonds.
68)
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
69) What name is given to a hydrocarbon that contains a carbon-carbon triple bond?
A) alkane
B) alkene
C) alkyne
D) aromatic
E) none of the above
69)
70) What is the hybridization of the nitrogen atom in the molecule below?
70)
A) s
B) sp
C) sp2
D) sp3
E) none of the above
71) What is the approximate CCC bond angle in the compound below?
A) 60°
B) 90°
C) 109.5°
D) 120°
71)
E) 180°
72) How many s bonds does the compound shown contain?
A) 3
B) 5
C) 9
72)
D) 10
10
E) 11
73) Acrylonitrile (CH2 =CHCN) contains __________ s bonds and __________ p bonds.
A) 4, 1
B) 6, 3
C) 4, 3
D) 6, 1
73)
E) 2, 0
74) The CCN bond angle in acrylonitrile (CH2 =CHCN) is approximately __________.
A) 60°
B) 90°
C) 109.5°
D) 120°
74)
E) 180°
75) Which of the following statements concerning the cyclic molecule shown is not true?
75)
A) It contains a π molecular orbital formed by the overlap of a carbon p atomic orbital with an
oxygen p atomic orbital.
B) It contains a σ molecular orbital formed by the overlap of two carbon sp2 hybrid atomic
orbitals.
C) It contains a σ molecular orbital formed by the overlap of two carbon sp3 hybrid atomic
orbitals.
D) It contains a π molecular orbital formed by the overlap of two carbon p atomic orbitals.
E) It contains a σ molecular orbital formed by the overlap of a carbon p atomic orbital with an
oxygen sp3 atomic orbital.
76) A molecule of acetylene (C2 H2 ) has a __________ geometry and a molecular dipole moment that is
76)
__________.
A) tetrahedral, nonzero
B) bent, nonzero
C) bent, zero
D) linear, nonzero
E) linear, zero
77) The HNC bond angle in the cation [CH2 NH2 ]+ is approximately __________.
A) 60°
B) 90°
C) 109.5°
D) 120°
77)
E) 180°
78) Which of the following best describes the relationship between the two structures shown?
A) They represent the same compound.
B) They represent different compounds that are constitutional isomers.
C) They represent different compounds that are geometric isomers.
D) They represent different compounds that are alkenes.
E) They represent different compounds that are alkanes.
11
78)
79) Anisole, the compound shown below, is an example of __________.
79)
A) an ester
B) an ether
C) an alcohol
D) an aldehyde
E) a ketone
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
80) The HCC bond angle in allene (H2 C=C=CH2 ) is approximately what?
80)
81) The CCC bond angle in allene (H2 C=C=CH2) is approximately what?
81)
82) From a molecular orbital perspective, why is there relatively free rotation about the
carbon-carbon bond of ethane (CH3 CH3 )?
82)
83) From a molecular orbital perspective why isn't there relatively free rotation about the
carbon-carbon double bond in ethene (CH2 =CH2)?
83)
84) Provide the condensed formulas of three structural isomers with molecular formula C5 H12
84)
and arrange them in order of increasing boiling point.
85) Provide the structure of an aromatic compound with seven carbon atoms.
85)
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
86) Which of the following does not contain a carbonyl group?
A) aldehyde
B) ketone
C) carboxylic acid
D) ester
E) ether
86)
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
87) Acetone is a ketone that contains three carbon atoms. Provide its structure.
87)
88) Provide the condensed structures of two structurally isomeric amines that contain two
carbons.
88)
89) What hybrid atomic orbitals are overlapping to form the carbon-oxygen s bond in
acetaldehyde (CH3CHO)?
89)
12
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
90) Which of the following line orbital energy diagrams describes the orbital location of valence
electrons in an sp3 hybridized carbon atom (consider that SP is a generic notation that could
90)
reference either sp, sp2 or sp3 hybrid orbitals)?
A)
B)
C)
D)
E)
91) Which of the labeled atoms in the following structure are sp2 hybridized?
A) 1 and 4
B) 2 and 5
C) 2 and 4
13
D) 2 and 3
91)
E) 2, 3 and 4
92) Which of the following compounds is not a constitutional isomer of a compound with an empirical
formula C 3H7 O and a formula mass of 118.164?
92)
A)
B)
C)
D)
E)
93) Which of the following statements is correct?
A) Higher molecular dipole values (μ) are associated with nonpolar molecules
B) All polar molecules are capable of hydrogen bond formation
C) The polarity of a molecule is dependent on its three-dimensional structure
D) Induced dipole interactions are usually stronger than dipole-dipole interactions
E) Polar solutes tend to be more soluble in nonpolar solvents
14
93)
94) Which of the following has the highest boiling point?
A)
B)
C)
D)
E)
15
94)
Use the following structure for the questions below.
Saquinavir Structure
95) Which of the following functional groups is not present in the HIV protease inhibitor drug called
Saquinavir?
A) alcohol
B) amide
C) aromatic
D) amine
E) ketone
95)
96) Which functional group occurs more than two times in the structure of the HIV protease inhibitor
drug called Saquinavir?
A) ketone
B) carboxylic acid
C) amine
D) amide
E) alkene
96)
97) Which of the following functional groups does not have at least one sp2 hybridized carbon atom as
a constituent of the group?
A) carboxylic acid
B) alkene
C) aldehyde
D) ether
E) ester
97)
16
Answer Key
Testname: UNTITLED6
1) wave function
ID: oc6w 2-1
Diff: 1
Skill:
2) square of the wave function
ID: oc6w 2-2
Diff: 2
Skill:
3) molecular orbitals
ID: oc6w 2-3
Diff: 1
Skill:
4) C
ID: oc6w 2-4
Diff: 3
Skill:
5) σ*
ID: oc6w 2-5
Diff: 2
Skill:
6) σ
ID: oc6w 2-6
Diff: 2
Skill:
7) π
ID: oc6w 2-7
Diff: 2
Skill:
8) π*
ID: oc6w 2-8
Diff: 2
Skill:
9) σ*
ID: oc6w 2-9
Diff: 2
Skill:
10) π
ID: oc6w 2-10
Diff: 1
Skill:
11) B
ID: oc6w 2-11
Diff: 3
Skill:
12) 180°
ID: oc6w 2-12
Diff: 2
Skill:
17
Answer Key
Testname: UNTITLED6
13) approximately 109.5°
ID: oc6w 2-13
Diff: 2
Skill:
14) approximately 120°
ID: oc6w 2-14
Diff: 2
Skill:
15) sp2 , 120°
ID: oc6w 2-15
Diff: 3
Skill:
16) D
ID: oc6w 2-16
Diff: 2
Skill:
17) Conformations
ID: oc6w 2-17
Diff: 2
Skill:
18) C
ID: oc6w 2-18
Diff: 1
Skill:
19) C
ID: oc6w 2-19
Diff: 1
Skill:
20) D
ID: oc6w 2-20
Diff: 3
Skill:
21) B
ID: oc6w 2-21
Diff: 2
Skill:
22) A
ID: oc6w 2-22
Diff: 2
Skill:
23) C
ID: oc6w 2-23
Diff: 2
Skill:
24) A
ID: oc6w 2-24
Diff: 3
Skill:
18
Answer Key
Testname: UNTITLED6
25) B
ID: oc6w 2-25
Diff: 2
Skill:
26) D
ID: oc6w 2-26
Diff: 1
Skill:
27) 8
ID: oc6w 2-27
Diff: 3
Skill:
28) E
ID: oc6w 2-28
Diff: 1
Skill:
29) Yes
ID: oc6w 2-29
Diff: 1
Skill:
30) D
ID: oc6w 2-30
Diff: 1
Skill:
31) CH3 CH2CH2 OH has the higher boiling point since it is capable of intermolecular hydrogen bonding.
ID: oc6w 2-31
Diff: 2
Skill:
32) CH3 CH2CH2 NH2 has the higher boiling point since it is capable of intermolecular hydrogen bonding.
ID: oc6w 2-32
Diff: 3
Skill:
33) CH3 CH2CH2 CH2 CH3 has the higher boiling point. As the degree of branching increases, the surface area of the
molecule decreases and the potential for intermolecular attraction via London forces decreases. Greater surface area
leads to a more intermolecular attraction which in results in a higher boiling point.
ID: oc6w 2-33
Diff: 2
Skill:
34) One would not expect NaCl to be highly soluble in hexane. NaCl is an ionic solid (i.e., a very polar material) while
hexane is nonpolar. Nopolar solvent molecules do not solvate ions well. The attractions of oppositely charged ions to
each other are vastly greater than the weak attractions of the ions for the solvent.
ID: oc6w 2-34
Diff: 2
Skill:
35) CH3 CH2OH is more soluble in water since it can donate a hydrogen bond to water and accept a hydrogen bond from
water. CH3OCH3 can only accept a hydrogen bond from water; it does not have hydrogen which can hydrogen bond
to water.
ID: oc6w 2-35
Diff: 3
Skill:
19
Answer Key
Testname: UNTITLED6
36) (CH3 )2NH is more soluble in water since it can hydrogen bond with water. Alkanes are not capable of hydrogen
bonding with water.
ID: oc6w 2-36
Diff: 2
Skill:
37) D
ID: oc6w 2-37
Diff: 1
Skill:
38) 2 pi bonds and 13 sigma bonds
ID: oc6w 2-38
Diff: 2
Skill:
39) constitutional isomers
ID: oc6w 2-39
Diff: 2
Skill:
40) constitutional isomers
ID: oc6w 2-40
Diff: 2
Skill:
41) cis-trans isomers
ID: oc6w 2-41
Diff: 2
Skill:
42) constitutional isomers
ID: oc6w 2-42
Diff: 2
Skill:
43) not isomeric
ID: oc6w 2-43
Diff: 1
Skill:
44) constitutional isomers
ID: oc6w 2-44
Diff: 1
Skill:
45) cis-trans isomers
ID: oc6w 2-45
Diff: 2
Skill:
46) cis-trans isomers
ID: oc6w 2-46
Diff: 2
Skill:
47) Yes, the CO bond in methanol does have an individual bond dipole moment since the C and O atoms comprising the
bond have differing electronegativities.
ID: oc6w 2-47
Diff: 3
Skill:
20
Answer Key
Testname: UNTITLED6
48) B
ID: oc6w 2-48
Diff: 2
Skill:
49) C
ID: oc6w 2-49
Diff: 2
Skill:
50)
ID: oc6w 2-50
Diff: 3
Skill:
51) E
ID: oc6w 2-51
Diff: 2
Skill:
52) E
ID: oc6w 2-52
Diff: 1
Skill:
53) E
ID: oc6w 2-53
Diff: 1
Skill:
54) London dispersion forces
ID: oc6w 2-54
Diff: 2
Skill:
55)
ID: oc6w 2-55
Diff: 2
Skill:
56) CH3 CH2CH2 CH2 CH3
(CH3 )2CHCH2 CH3
(CH3)4 C
ID: oc6w 2-56
Diff: 2
Skill:
21
Answer Key
Testname: UNTITLED6
57)
ID: oc6w 2-57
Diff: 2
Skill:
58) E
ID: oc6w 2-58
Diff: 1
Skill:
59) Net molecular dipole moment present.
ID: oc6w 2-59
Diff: 2
Skill:
60) 180°
ID: oc6w 2-60
Diff: 2
Skill:
61) approximately 120°
ID: oc6w 2-61
Diff: 2
Skill:
62) The hybridization of the oxygen atom is sp3 and the COC bond angle is slightly less than 109.5°.
ID: oc6w 2-62
Diff: 2
Skill:
63) The hybridization of the oxygen atom is sp2 and the OCH bond angle is approximately 120°.
ID: oc6w 2-63
Diff: 2
Skill:
64) The single carbon-carbon sigma bond present in CH3 CH3 is formed by the overlap of two C sp3 hybrid atomic
orbitals. The overlap of these orbitals is not disrupted by rotation about the carbon-carbon bond axis. In the case of
CH2 CH2, the carbon-carbon bond is a double bond with both a sigma and pi bond present. Rotation about the
carbon-carbon bond axis disrupts the overlap of the two carbon p orbitals forming the pi bond.
ID: oc6w 2-64
Diff: 2
Skill:
22
Answer Key
Testname: UNTITLED6
65)
ID: oc6w 2-65
Diff: 2
Skill:
66) C
ID: oc6w 2-66
Diff: 2
Skill:
67) This molecule is a carboxylic acid which contains the carboxyl group as its characteristic functional group.
ID: oc6w 2-67
Diff: 1
Skill:
68) 14 sigma, 3 pi
ID: oc6w 2-68
Diff: 2
Skill:
69) C
ID: oc6w 2-69
Diff: 1
Skill:
70) C
ID: oc6w 2-70
Diff: 1
Skill:
71) D
ID: oc6w 2-71
Diff: 1
Skill:
72) D
ID: oc6w 2-72
Diff: 2
Skill:
73) B
ID: oc6w 2-73
Diff: 2
Skill:
74) E
ID: oc6w 2-74
Diff: 2
Skill:
75) E
ID: oc6w 2-75
Diff: 2
Skill:
23
Answer Key
Testname: UNTITLED6
76) E
ID: oc6w 2-76
Diff: 1
Skill:
77) D
ID: oc6w 2-77
Diff: 2
Skill:
78) A
ID: oc6w 2-78
Diff: 1
Skill:
79) B
ID: oc6w 2-79
Diff: 1
Skill:
80) 120°
ID: oc6w 2-80
Diff: 1
Skill:
81) 180°
ID: oc6w 2-81
Diff: 1
Skill:
82) This carbon-carbon s bond is formed by the head-to-head overlap of two sp3 hybrid orbitals. Rotation about this
bond does not disrupt the orbital overlap.
ID: oc6w 2-82
Diff: 2
Skill:
83) Two carbon p atomic orbitals overlap side-to-side and in phase to form the p bond that is present. Rotation about the
carbon-carbon bond axis requires quite a bit of energy because the p bond is broken as the overlap between the two p
orbitals is disrupted.
ID: oc6w 2-83
Diff: 2
Skill:
84) C(CH3 )4 < (CH3 )2 CHCH2CH3 < CH3(CH2 )3 CH3
ID: oc6w 2-84
Diff: 2
Skill:
85)
ID: oc6w 2-85
Diff: 2
Skill:
24
Answer Key
Testname: UNTITLED6
86) E
ID: oc6w 2-86
Diff: 1
Skill:
87)
ID: oc6w 2-87
Diff: 1
Skill:
88) (CH3 )2NH and CH3 CH2NH2
ID: oc6w 2-88
Diff: 2
Skill:
89) carbon sp2 and oxygen sp2
ID: oc6w 2-89
Diff: 2
Skill:
90) D
ID: oc6w 2-90
Diff: 2
Skill:
91) D
ID: oc6w 2-91
Diff: 2
Skill:
92) E
ID: oc6w 2-92
Diff: 2
Skill:
93) C
ID: oc6w 2-93
Diff: 1
Skill:
94) A
ID: oc6w 2-94
Diff: 1
Skill:
95) E
ID: oc6w 2-95
Diff: 2
Skill:
96) D
ID: oc6w 2-96
Diff: 2
Skill:
25
Answer Key
Testname: UNTITLED6
97) D
ID: oc6w 2-97
Diff: 1
Skill:
26
QOI 0809 STRUCTURE
Name___________________________________
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
21)
22)
23)
24)
25)
26)
27)
28)
29)
30)
31)
32)
33)
34)
35)
36)
37)
38)
39)
40)
41)
1
42)
43)
44)
45)
46)
47)
48)
49)
50)
51)
52)
53)
54)
55)
56)
57)
58)
59)
60)
61)
62)
63)
64)
65)
66)
67)
68)
2
69)
70)
71)
72)
73)
74)
75)
76)
77)
78)
79)
80)
81)
82)
83)
84)
85)
86)
87)
88)
89)
90)
91)
92)
93)
94)
95)
96)
97)
3