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What is the starting material in the following reaction? What is the starting material in 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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What is the purpose of a silyl ether?


A) To protect esters from organometallic reagents and other reagents
B) To protect ketones from organometallic reagents and other reagents
C) To protect alcohols from organometallic reagents and other reagents
D) To prevent the formation of carboxylic acids

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

Correct Answer

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Which of the following terms explain why aldehydes are more reactive than ketones?


A) Electronegativity and resonance
B) Hybridization and resonance
C) Electronegativity and hybridization
D) Sterics and electronics

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

Correct Answer

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


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

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

Correct Answer

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Which reagent can be used to reduce the carbonyl in methyl vinyl ketone?


A) NaBH4/CH3OH
B) H2 and Pd-C
C) FeCl3
D) NaH

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

Correct Answer

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Which reagent can be used to reduce the alkene in cyclopentenone?


A) NaBH4
B) LiAlH4
C) H2 and Pd-C
D) DIBAL-H

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

Correct Answer

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Rank the following compounds in order of increasing reactivity toward the nucleophilic hydride reagent,NaBH4. Rank the following compounds in order of increasing reactivity toward the nucleophilic hydride reagent,NaBH<sub>4</sub>. A) I < II < III B) III < II < I C) II < III < I D) II < I < III


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

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

Correct Answer

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What is the major organic product of the following reaction? What is the major organic 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 missing reagent in the reaction below? What is the missing reagent in the reaction below? A) NaBH<sub>4</sub>/CH<sub>3</sub>OH B) DIBAL-H C) H<sub>2</sub>,Pd-C D) LiAlH<sub>4</sub> then H<sub>2</sub>O


A) NaBH4/CH3OH
B) DIBAL-H
C) H2,Pd-C
D) LiAlH4 then H2O

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

Correct Answer

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


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

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

Correct Answer

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What is the major organic product of the following reaction? What is the major organic product of the following reaction? A) Only I B) Only II C) Only III D) Only I and II


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

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

Correct Answer

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


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

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

Correct Answer

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What is the major product from the following reaction? What is the major product from 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) 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) [1] Mg,[2] CO<sub>2</sub>,[3] acidic work-up B) [1] CO<sub>2</sub>,[2] NaOH C) [1] CO<sub>2</sub>,[2] acidic work-up D) LiAlH<sub>4</sub>


A) [1] Mg,[2] CO2,[3] acidic work-up
B) [1] CO2,[2] NaOH
C) [1] CO2,[2] acidic work-up
D) LiAlH4

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

Correct Answer

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Rank the following compounds in order of increasing reactivity in nucleophilic acyl substitution reactions,starting with the least reactive compound. Rank the following compounds in order of increasing reactivity in nucleophilic acyl substitution reactions,starting with the least reactive compound. A) III < II < I B) II < III < I C) III < I < II D) II < I < III


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

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

Correct Answer

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


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

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

Correct Answer

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What reagent can be used to cleave a silyl ether protecting group?


A) NaOMe
B) MeMgBr
C) Bu4NF
D) Pd/C

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

Correct Answer

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What is the starting material in the reaction below? What is the starting material in the reaction below? A) Bromobenzene B) Benzyl bromide C) Benzoic acid D) Lithium benzoate


A) Bromobenzene
B) Benzyl bromide
C) Benzoic acid
D) Lithium benzoate

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

Correct Answer

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Showing 21 - 40 of 59

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