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When an aldehyde is reacted with excess ethanol with an acid as a catalyst, what is the product called?


A) Hemiacetal
B) Di-ether
C) Di-alkoxy alkane
D) Acetal

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

Correct Answer

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What is the IUPAC name for the following compound? What is the IUPAC name for the following compound? A) pivaldehyde B) 2,2-dimethylpropanal C) tert-butyl aldehyde D) 2,2-dimethylpentanal


A) pivaldehyde
B) 2,2-dimethylpropanal
C) tert-butyl aldehyde
D) 2,2-dimethylpentanal

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

Correct Answer

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Which is the most reactive carbonyl compound? Which is the most reactive carbonyl compound? A) I B) II C) III D) IV


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

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

Correct Answer

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A

Why are strongly acidic conditions not used in the formation of enamines and imines?


A) The carbonyl will be protonated.
B) The amine will be completely protonated.
C) The product is not stable to strong acid.
D) An enol will be formed.

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

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What is the product of the following reaction? What is the product of the following reaction? A) I B) II C) III D) IV


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

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

Correct Answer

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What is the product of the following reaction? What is the product of the following reaction? A) I B) II C) III D) IV


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

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

Correct Answer

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What is the driving force for the Wittig reaction?


A) The formation of an alkene
B) The deprotonation of a phosphonium salt
C) The elimination of triphenylphosphine oxide
D) The formation of a phosphonium salt

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

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Butanal (MW= 72) has a boiling point of 76 °C while butanol (MW= 74) has a boiling point of 118 °C. What accounts for this difference in boiling points?


A) Butanol is polar while butanal is not polar.
B) Butanol can exhibit dipole-dipole interactions while butanal cannot.
C) Butanol can hydrogen bond and butanal cannot hydrogen bond.
D) Butanal is less sterically hindered than butanol.

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

Correct Answer

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What is the IUPAC for the following compound? What is the IUPAC for the following compound? A) 1-formyl-2-nitropropane B) 1-formyl-3-nitrobutane C) 2-nitrobutanal D) 3-nitrobutanal


A) 1-formyl-2-nitropropane
B) 1-formyl-3-nitrobutane
C) 2-nitrobutanal
D) 3-nitrobutanal

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

Correct Answer

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What needs to be done to make the following reaction go to starting materials? What needs to be done to make the following reaction go to starting materials? A) Heat the reaction. B) Add aqueous acid. C) Add aqueous base. D) Add water.


A) Heat the reaction.
B) Add aqueous acid.
C) Add aqueous base.
D) Add water.

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

Correct Answer

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What is the product of the following reaction? What is the product of the following reaction? A) I B) II C) III D) IV


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

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

Correct Answer

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A

What is (are) the product(s) of the following reaction? What is (are) the product(s) of the following reaction? A) I only B) II only C) III only D) II and III


A) I only
B) II only
C) III only
D) II and III

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

Correct Answer

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Cyclic acetals are used as protecting groups for ketones or aldehydes because they are inert to all of the following reagents except


A) aqueous acid.
B) aqueous base.
C) oxidizing reagents.
D) reducing reagents.

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

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A

What needs to be done to make the following reaction proceed? What needs to be done to make the following reaction proceed? A) Heat the reaction. B) Add an acid catalyst only. C) Add a base catalyst only. D) Heat the reaction and add an acid catalyst.


A) Heat the reaction.
B) Add an acid catalyst only.
C) Add a base catalyst only.
D) Heat the reaction and add an acid catalyst.

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

Correct Answer

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What is the product of the following reaction? What is the product of the following reaction? A) I B) II C) III D) IV


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

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

Correct Answer

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What is the product of the following reaction? What is the product of the following reaction? A) I B) II C) III D) IV


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

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

Correct Answer

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Is the following reaction reversible and, if so, under what conditions? Is the following reaction reversible and, if so, under what conditions? A) No B) Yes, under acidic conditions C) Yes, using Pd/C D) Yes, under basic conditions


A) No
B) Yes, under acidic conditions
C) Yes, using Pd/C
D) Yes, under basic conditions

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

Correct Answer

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What is the missing reagent in the reaction below? What is the missing reagent in the reaction below? A) I B) II C) III D) IV


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

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

Correct Answer

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Using 1H NMR spectroscopy, how can you tell the difference between an aldehyde and a ketone?


A) An aldehyde has a C-H stretch (one or two) between 2700-2830 cm-1.
B) An aldehyde has a proton signal between 9-10 ppm.
C) A ketone has signals around 2-3 ppm.
D) A ketone has a signal around 200 ppm.

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

Correct Answer

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What is the product of the following reaction? What is the product of the following reaction? A) I B) II C) III D) IV


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

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

Correct Answer

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