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Which of the following statements about the molecular orbital (MO) theory is true? Which of the following statements about the molecular orbital (MO) theory is true?   A) When two p orbitals of similar phase overlap side-by-side,a p* antibonding molecular orbital is formed. B) When two p orbitals of opposite phase overlap side-by-side,a p bonding molecular orbital is formed. C) A p bonding molecular orbital is higher in energy than the two atomic p orbitals from which it is formed. D) A p* antibonding molecular orbital is higher in energy than the two atomic p orbitals from which it is formed.


A) When two p orbitals of similar phase overlap side-by-side,a p* antibonding molecular orbital is formed.
B) When two p orbitals of opposite phase overlap side-by-side,a p bonding molecular orbital is formed.
C) A p bonding molecular orbital is higher in energy than the two atomic p orbitals from which it is formed.
D) A p* antibonding molecular orbital is higher in energy than the two atomic p orbitals from which it is formed.

E) B) and D)
F) A) and C)

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What is the hybridization of the indicated N atom in the following compound? What is the hybridization of the indicated N atom in the following compound?   A) p B) sp C) sp<sup>2</sup> D) sp<sup>3</sup>


A) p
B) sp
C) sp2
D) sp3

E) B) and C)
F) B) and D)

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What is the IUPAC name of the following compound? What is the IUPAC name of the following compound?   A) 2-Nitro-5-carboxychlorobenzene B) 2-Chloro-4-carboxynitrobenzene C) 2-Chloro-1-nitro-4-benzoic acid D) 3-Chloro-4-nitrobenzoic acid


A) 2-Nitro-5-carboxychlorobenzene
B) 2-Chloro-4-carboxynitrobenzene
C) 2-Chloro-1-nitro-4-benzoic acid
D) 3-Chloro-4-nitrobenzoic acid

E) All of the above
F) None of the above

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What is the correct structure for para-bromotoluene? What is the correct structure for para-bromotoluene?   A) I B) II C) III D) IV


A) I
B) II
C) III
D) IV

E) B) and D)
F) A) and D)

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What is the correct structure for anisole? What is the correct structure for anisole?   A) I B) II C) III D) IV


A) I
B) II
C) III
D) IV

E) B) and C)
F) A) and D)

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How many 13CNMR signals does the following compound exhibit? How many <sup>13</sup>CNMR signals does the following compound exhibit?   A) 4 B) 5 C) 6 D) 8


A) 4
B) 5
C) 6
D) 8

E) None of the above
F) A) and C)

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Which of the following statements about benzene is true?


A) Benzene is a saturated hydrocarbon.
B) Benzene undergoes addition reactions.
C) Benzene has five degrees of unsaturation.
D) Benzene undergoes substitution reactions.

E) A) and B)
F) B) and D)

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D

What orbitals are used to form the bond indicated in the following molecule? What orbitals are used to form the bond indicated in the following molecule?   A) Csp<sup>2</sup>¾Csp<sup>2</sup> B) Csp<sup>2</sup>¾ C2p C) C2p¾C2p D) Csp<sup>3</sup>¾Csp<sup>3</sup>


A) Csp2¾Csp2
B) Csp2¾ C2p
C) C2p¾C2p
D) Csp3¾Csp3

E) A) and B)
F) A) and C)

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What compound is consistent with the following 1H NMR spectrum? What compound is consistent with the following <sup>1</sup>H NMR spectrum?   A) Phenol B) Anisole C) 4-bromoanisole D) 4-bromotoluene


A) Phenol
B) Anisole
C) 4-bromoanisole
D) 4-bromotoluene

E) None of the above
F) A) and D)

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Which of the following molecules has the most acidic hydrogen atoms? Which of the following molecules has the most acidic hydrogen atoms?   A) I B) II C) III D) IV


A) I
B) II
C) III
D) IV

E) B) and C)
F) A) and D)

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In what type of orbital does the lone pair on the indicated N atom reside? In what type of orbital does the lone pair on the indicated N atom reside?   A) p B) sp C) sp<sup>2</sup> D) sp<sup>3</sup>


A) p
B) sp
C) sp2
D) sp3

E) B) and C)
F) C) and D)

Correct Answer

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What is the IUPAC name of the following compound? What is the IUPAC name of the following compound?   A) 3,6-Dichloroaniline B) 2,5-Dichloroaniline C) 2,5-Dichloroaminobenzene D) 2,5-Dichloroanisole


A) 3,6-Dichloroaniline
B) 2,5-Dichloroaniline
C) 2,5-Dichloroaminobenzene
D) 2,5-Dichloroanisole

E) None of the above
F) A) and B)

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What is the name of the following compound? What is the name of the following compound?   A) 2,6-Dimethylbenzene B) 5-Methyltoluene C) Anisole D) 1,3-Dimethylbenzene


A) 2,6-Dimethylbenzene
B) 5-Methyltoluene
C) Anisole
D) 1,3-Dimethylbenzene

E) A) and B)
F) None of the above

Correct Answer

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What is the name of the following compound? What is the name of the following compound?   A) Meta-bromophenol B) Para-hydroxybenzene C) 3-bromoanisole D) 6-methoxy-2-bromobenzene


A) Meta-bromophenol
B) Para-hydroxybenzene
C) 3-bromoanisole
D) 6-methoxy-2-bromobenzene

E) B) and C)
F) All of the above

Correct Answer

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What is the correct structure for aniline? What is the correct structure for aniline?   A) I B) II C) III D) IV


A) I
B) II
C) III
D) IV

E) None of the above
F) A) and B)

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Which of the following compounds is not aromatic? Which of the following compounds is not aromatic?   A) I B) II C) III D) IV


A) I
B) II
C) III
D) IV

E) All of the above
F) A) and B)

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A

What is the hybridization of the indicated N atom in the following compound? What is the hybridization of the indicated N atom in the following compound?   A) p B) sp C) sp<sup>2</sup> D) sp<sup>3</sup>


A) p
B) sp
C) sp2
D) sp3

E) All of the above
F) None of the above

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C

Which of the following compounds is aromatic? Which of the following compounds is aromatic?   A) I B) II C) III D) IV


A) I
B) II
C) III
D) IV

E) B) and C)
F) A) and D)

Correct Answer

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What is the correct assignment of the names of the following aromatic heterocycles? What is the correct assignment of the names of the following aromatic heterocycles?   A) I = pyridine; II = pyrimidine; III = furan B) I = pyrimidine; II =pyrrole; III = furan C) I = pyridine; II = pyrrole; III = furan D) I = pyrimidine; II = pyrrole; III = tetrahydrofuran


A) I = pyridine; II = pyrimidine; III = furan
B) I = pyrimidine; II =pyrrole; III = furan
C) I = pyridine; II = pyrrole; III = furan
D) I = pyrimidine; II = pyrrole; III = tetrahydrofuran

E) A) and C)
F) B) and D)

Correct Answer

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Which of the following ions is aromatic? Which of the following ions is aromatic?   A) Only I and II B) Only II and III C) Only III and IV D) Only II and IV


A) Only I and II
B) Only II and III
C) Only III and IV
D) Only II and IV

E) B) and D)
F) A) and B)

Correct Answer

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