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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) B) and D)
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) [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) C) and D)
F) A) and D)

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 C)
F) A) and B)

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) A) and B)

Correct Answer

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Which of the following statements about organometallic reagents is not true?


A) Organometallic reagents contain a carbon atom bonded to a metal.
B) The more polar the carbon-metal bond,the more reactive the organometallic reagent.
C) Organometallic reagents react as bases and nucleophiles.
D) Organometallic reagents are strong acids that readily donate a proton to water.

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

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) PhMgBr then H<sub>2</sub>O B) Benzene,AlCl<sub>3</sub> C) Ph<sub>2</sub>CuLi then H<sub>2</sub>O D) PhLi then H<sub>2</sub>O


A) PhMgBr then H2O
B) Benzene,AlCl3
C) Ph2CuLi then H2O
D) PhLi then H2O

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

Correct Answer

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Why would the alcohol in the following compound need to be protected before reaction? Why would the alcohol in the following compound need to be protected before reaction? A) If it isn't protected,the product will be a carboxylic acid. B) The Grignard reagent will react with the alcohol before the ketone. C) Magnesium is Lewis acidic and will coordinate with the alcohol. D) There is no need to protect the alcohol.


A) If it isn't protected,the product will be a carboxylic acid.
B) The Grignard reagent will react with the alcohol before the ketone.
C) Magnesium is Lewis acidic and will coordinate with the alcohol.
D) There is no need to protect the alcohol.

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

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) C) and D)

Correct Answer

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What carbonyl compound and Grignard reagent could be used to prepare 2-butanol? What carbonyl compound and Grignard reagent could be used to prepare 2-butanol? 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) A) 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) None of the above
F) C) and D)

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] LiAlH<sub>4</sub>,[2] H<sub>2</sub>O B) [1] CH<sub>2</sub>=CHLi,[2] H<sub>2</sub>O C) [1] (CH<sub>2</sub>=CH) <sub>2</sub>CuLi,[2] H<sub>2</sub>O D) [1] DIBAL-H,[2] H<sub>2</sub>O


A) [1] LiAlH4,[2] H2O
B) [1] CH2=CHLi,[2] H2O
C) [1] (CH2=CH) 2CuLi,[2] H2O
D) [1] DIBAL-H,[2] H2O

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

Correct Answer

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Rank the following compounds in order of decreasing reactivity in nucleophilic addition reactions,starting with the most reactive compound. Rank the following compounds in order of decreasing reactivity in nucleophilic addition reactions,starting with the most reactive compound. A) III > I > IV > II B) II > IV > I > III C) IV > II > III > I D) II > IV > III > I


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

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

Correct Answer

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What will be the product of the following reaction (before any aqueous work-up) ? What will be the product of the following reaction (before any aqueous work-up) ? A) I B) II C) III D) IV


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

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

Correct Answer

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What is the name of the general reaction type that carboxylic acids,esters,and amides undergo?


A) Electrophilic acyl addition
B) Nucleophilic acyl addition
C) Nucleophilic acyl substitution
D) Electrophilic acyl substitution

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

Correct Answer

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


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

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

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

Correct Answer

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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) A) and C)

Correct Answer

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Showing 21 - 40 of 59

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