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Which of the following has the compounds shown in the correct order of decreasing acidity (i.e., more acidic > less acidic) ? Which of the following has the compounds shown in the correct order of decreasing acidity (i.e., more acidic > less acidic) ? A) 1 > 2 > 3 B) 2 > 1 > 3 C) 3 > 2 > 1 D) 1 > 3 > 2


A) 1 > 2 > 3
B) 2 > 1 > 3
C) 3 > 2 > 1
D) 1 > 3 > 2

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

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Which of the following is not true about [18]annulene? Which of the following is not true about [18]annulene? A) [18]annulene is planar B) [18]annulene is aromatic C) [18]annulene gives one peak in the <sup>1</sup>H NMR spectrum D) [18]annulene has 18 pi bonds


A) [18]annulene is planar
B) [18]annulene is aromatic
C) [18]annulene gives one peak in the 1H NMR spectrum
D) [18]annulene has 18 pi bonds

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

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What is the best choice of reagent to achieve the following reaction? What is the best choice of reagent to achieve the following reaction? A) H<sub>2</sub>SO<sub>4</sub> B) NaOH, H<sub>2</sub>O C) K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>, H<sub>2</sub>SO<sub>4</sub> D) H<sub>2</sub>/Pd


A) H2SO4
B) NaOH, H2O
C) K2Cr2O7, H2SO4
D) H2/Pd

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

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What are the relative positions of the substituents in the following structure? What are the relative positions of the substituents in the following structure? A) anti B) meta C) ortho D) para


A) anti
B) meta
C) ortho
D) para

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

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Phenols are stronger acids than alcohols because of the resonance stabilization of alkoxide ions.

A) True
B) False

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What is the hybridization of the oxygen atom of furan?


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

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

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What is the major organic product obtained from the following reaction? What is the major organic product obtained from the following reaction? A) 1 B) 2 C) 3 D) 4


A) 1
B) 2
C) 3
D) 4

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

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Provide a brief explanation of why the cyclopentadienyl anion (below) is aromatic. Your answer should identify the hybridization of each carbon atom and account for which electrons are in the pi system. Provide a brief explanation of why the cyclopentadienyl anion (below) is aromatic. Your answer should identify the hybridization of each carbon atom and account for which electrons are in the pi system.

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The all five carbons are sp2 hybridized. ...

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Which of the following has the compounds shown in the correct order of decreasing acidity (i.e., more acidic > less acidic) ? Which of the following has the compounds shown in the correct order of decreasing acidity (i.e., more acidic > less acidic) ? A) 1 > 2 > 3 B) 2 > 3 > 1 C) 3 > 2 > 1 D) 2 > 1 > 3


A) 1 > 2 > 3
B) 2 > 3 > 1
C) 3 > 2 > 1
D) 2 > 1 > 3

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

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Consider the following structure. Consider the following structure. -This structure contains ____ π electrons. -This structure contains ____ π electrons.

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What is the best choice of reagent to achieve the following reaction? What is the best choice of reagent to achieve the following reaction? A) Br<sub>2</sub>, CCl<sub>4</sub> B) HBr, H<sub>2</sub>O C) Br<sub>2</sub>, light D) NaBr


A) Br2, CCl4
B) HBr, H2O
C) Br2, light
D) NaBr

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

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Which of the following has the compounds shown in the correct order of decreasing acidity (i.e., more acidic > less acidic) ? Which of the following has the compounds shown in the correct order of decreasing acidity (i.e., more acidic > less acidic) ? A) 1 > 2 > 3 B) 2 > 1 > 3 C) 3 > 2 > 1 D) 1 > 3 > 2


A) 1 > 2 > 3
B) 2 > 1 > 3
C) 3 > 2 > 1
D) 1 > 3 > 2

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

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Assuming that the sulfur atom is sp2-hybridized, there are _____ π-electrons in the sulfathiazole ring.

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What are the relative positions of the substituents in the following structure? What are the relative positions of the substituents in the following structure? A) anti B) meta C) ortho D) para


A) anti
B) meta
C) ortho
D) para

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

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How many p orbital electrons are present in cyclopentadienyl anion?


A) 4
B) 6
C) 7
D) 8

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

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What is the correct assignment of the names of the following heterocycles? What is the correct assignment of the names of the following heterocycles? A) 1 = pyrrole; 2 = thiophene; 3 = pyridine B) 1 = thiophene; 2 = furan; 3 = pyrrole C) 1 = furan; 2 = pyrrole; 3 = thiophene D) 1 = furan; 2 = thiophene; 3 = pyrrole


A) 1 = pyrrole; 2 = thiophene; 3 = pyridine
B) 1 = thiophene; 2 = furan; 3 = pyrrole
C) 1 = furan; 2 = pyrrole; 3 = thiophene
D) 1 = furan; 2 = thiophene; 3 = pyrrole

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

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Why are nitrophenols more acidic than phenols?

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Nitro phenols are more acidic than pheno...

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Which of the following compounds is aromatic?


A) ethane
B) cyclobutadiene
C) benzene
D) cyclooctatetraene

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

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What is the IUPAC name of the following compound? What is the IUPAC name of the following compound? A) 1-bromo-2-fluoro-4-toluene B) 4-bromo-2-fluorotoluene C) 2-bromo-4-fluorophenol D) 4-bromo-2-fluoroxylene


A) 1-bromo-2-fluoro-4-toluene
B) 4-bromo-2-fluorotoluene
C) 2-bromo-4-fluorophenol
D) 4-bromo-2-fluoroxylene

E) A) and B)
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) 2,4-dibromotoluene B) 2,4-dibromophenol C) 2,4-dibromohydroxybenzene D) 4,6-dibromophenol


A) 2,4-dibromotoluene
B) 2,4-dibromophenol
C) 2,4-dibromohydroxybenzene
D) 4,6-dibromophenol

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

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