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Which of the following reactions of alkenes takes place with syn stereospecificity?


A) addition of bromine (treatment with Br2)
B) hydrogenation (treatment with H2/Pt)
C) addition of HBr (treatment with HBr)
D) acid-catalyzed hydration (treatment with aqueous H2SO4)

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

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What is the best choice of reagent(s) to perform the following transformation? What is the best choice of reagent(s) to perform the following transformation?

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Which of the following alkenes is most likely to undergo rearrangement upon acid-catalyzed hydration (treatment with aqueous H2SO4) ? Which of the following alkenes is most likely to undergo rearrangement upon acid-catalyzed hydration (treatment with aqueous H<sub>2</sub>SO<sub>4</sub>) ? A) 1 B) 2 C) 3 D) 4


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

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

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Consider the following reaction. Consider the following reaction. The mechanism for this reaction is shown below. The mechanism for this reaction is shown below. Consider the following reaction. The mechanism for this reaction is shown below.

A) True
B) False

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What is the correct order of stability of the following carbocations (more stable > less stable) ? What is the correct order of stability of the following carbocations (more stable > less stable) ? A) 1 > 2 > 3 B) 2 > 1 > 3 C) 2 > 3 > 1 D) 3 > 2 > 1


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

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

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What type of reaction mechanism accounts for the reaction of an alkene with HBr to give an alkyl bromide?


A) nucleophilic addition
B) electrophilic addition
C) radical addition
D) elimination

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

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B

What is the best choice of reagent to perform the following transformation? What is the best choice of reagent to perform the following transformation? A) Br<sub>2</sub> B) HBr C) Br<sub>2</sub>, H<sub>2</sub>O D) N-bromosuccinimide


A) Br2
B) HBr
C) Br2, H2O
D) N-bromosuccinimide

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

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C

The reagents that could effect the following conversion are H2 and Ni. The reagents that could effect the following conversion are H<sub>2</sub> and Ni.

A) True
B) False

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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?

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

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Identify "X" and "Y" in the following reaction. ​ Identify X and Y in the following reaction. ​ A) X is 1-methyl-3-cyclohexene, and Y is OsO<sub>4</sub>. B) X is 1-methylcyclopentene, and Y is H<sub>2</sub>SO<sub>4</sub>/H<sub>2</sub>O. C) X is 1-methylcyclohexene, and Y is O<sub>3</sub>/(CH<sub>3</sub>) <sub>2</sub>S. D) X is cyclopentane, and Y is OsO<sub>4</sub>.


A) X is 1-methyl-3-cyclohexene, and Y is OsO4.
B) X is 1-methylcyclopentene, and Y is H2SO4/H2O.
C) X is 1-methylcyclohexene, and Y is O3/(CH3) 2S.
D) X is cyclopentane, and Y is OsO4.

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

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Consider the following reactions. Consider the following reactions. Pathway ___ involves a 1,2-shift. Pathway ___ involves a 1,2-shift.

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

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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?

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11ead7c8_9dc0_55ae_84b0_bfecc3d0f2fa_TB7078_00

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) None of the above
F) All of the above

Correct Answer

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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 D)
F) None of the above

Correct Answer

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What is the best choice of reagent(s) to perform the following transformation? What is the best choice of reagent(s) to perform the following transformation?

Correct Answer

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(i) BH3; (i...

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

Correct Answer

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

Correct Answer

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