Question 1

Which of the following alkenes undergoes the least exothermic hydrogenation upon treatment with H2/Pd?

Accepted Answer

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

Question 2

What is the major organic product obtained from the following reaction?

Accepted Answer

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

Question 3

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

Accepted Answer

A) H2O, H2SO4 
B) HgSO4; followed by NaBH4 
C) BH3; followed by H2O2 
D) OsO4; followed by NaHSO3 
A) H2O, H2SO4 
B) HgSO4; followed by NaBH4 
C) BH3; followed by H2O2 
D) OsO4; followed by NaHSO3

Question 4

What is the major organic product obtained from the following reaction?

Accepted Answer

The answer of What is the major organic product obtained...

Question 5

What is the major organic product obtained from the following reaction?

Accepted Answer

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

Question 6

Which of the following reactions of alkenes is not stereospecific?

Accepted Answer

A) bromination (treatment with Br2 in CHCl3) 
B) hydrogenation (treatment with H2/Pt) 
C) acid-catalyzed hydration (treatment with aqueous H2SO4) 
D) bromohydrin formation (treatment with Br2/H2O) 
A) bromination (treatment with Br2 in CHCl3) 
B) hydrogenation (treatment with H2/Pt) 
C) acid-catalyzed hydration (treatment with aqueous H2SO4) 
D) bromohydrin formation (treatment with Br2/H2O)

Question 7

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

Accepted Answer

The answer of What is the best choice of reagent(s)...

Question 8

The reagents that could effect the following conversion are H2 and Ni.

Accepted Answer

A) True 
 B)False

Question 9

Provide the structure of the key intermediate in the following reaction?

Accepted Answer

The answer of Provide the structure of the key intermediate...

Question 10

What is the major organic product obtained from the following reaction?

Accepted Answer

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

Question 11

What is the major organic product obtained from the following reaction?

Accepted Answer

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

Question 12

What type of reactive intermediate is formed in the reaction of an alkene with Br2 and water to give a bromohydrin?

Accepted Answer

A) carbocation 
B) carbanion 
C) radical 
D) cyclic bromonium ion 
A) carbocation 
B) carbanion 
C) radical 
D) cyclic bromonium ion

Question 13

What is the major organic product obtained from the following reaction?

Accepted Answer

The answer of What is the major organic product obtained...

Question 14

The reaction of methylpropene with HBr in ether gives one of the two products below as the major product. Answer the following question(s) about this reaction.  
-Product _____would be formed via a primary carbocation.

Accepted Answer

The answer of The reaction of methylpropene with HBr in...

Question 15

What is the correct order of exothermicity for hydrogenation of the following butenes upon treatment with H2/Pd (more exothermic > less exothermic)?

Accepted Answer

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

Question 16

Which of the following alkenes undergoes the most exothermic hydrogenation upon treatment with H2/Pd?

Accepted Answer

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

Question 17

What is (are) the major organic product(s) obtained from the following reaction?   1.(2R,3R)-butanediol
2)(2S,3S)-butanediol
3)meso-2,3-butanediol

Accepted Answer

A) only 1 
B) only 2 
C) only 3 
D) only 1 and 2 
A) only 1 
B) only 2 
C) only 3 
D) only 1 and 2

Question 18

Consider the following reaction.   The product would be

Accepted Answer

A) True 
 B)False

Question 19

What is the correct order of stability of the following carbocations (more stable > less stable)?

Accepted Answer

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

Question 20

The reagents that could effect the following conversion are: BH3, then H2O2 and NaOH.

Accepted Answer

A) True 
 B)False

Exam 6: Reactions of Alkenes

Which of the following alkenes undergoes the least exothermic hydrogenation upon treatment with H2/Pd?

What is the major organic product obtained from the following reaction?

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

What is the major organic product obtained from the following reaction?

What is the major organic product obtained from the following reaction?

Which of the following reactions of alkenes is not stereospecific?

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

The reagents that could effect the following conversion are H2 and Ni.

Provide the structure of the key intermediate in the following reaction?

What is the major organic product obtained from the following reaction?

What is the major organic product obtained from the following reaction?

What type of reactive intermediate is formed in the reaction of an alkene with Br2 and water to give a bromohydrin?

What is the major organic product obtained from the following reaction?

The reaction of methylpropene with HBr in ether gives one of the two products below as the major product. Answer the following question(s) about this reaction. -Product _____would be formed via a primary carbocation.

What is the correct order of exothermicity for hydrogenation of the following butenes upon treatment with H2/Pd (more exothermic > less exothermic)?

Which of the following alkenes undergoes the most exothermic hydrogenation upon treatment with H2/Pd?

What is (are) the major organic product(s) obtained from the following reaction? 1.(2R,3R)-butanediol 2)(2S,3S)-butanediol 3)meso-2,3-butanediol

Consider the following reaction. The product would be

What is the correct order of stability of the following carbocations (more stable > less stable)?

The reagents that could effect the following conversion are: BH3, then H2O2 and NaOH.

Covalent Bonding and Shapes of Molecules

Alkanes and Cycloalkanes

Stereoisomerism and Chirality

Acids and Bases

Alkenes: Bonding, Nomenclature, and Properties

Alkynes

Haloalkanes, Halogenation, and Radical Reactions

Nucleophilic Substitution and Beta-Elimination

Alcohols

Ethers, Epoxides, and Sulfides

Infrared Spectroscopy

Nuclear Magnetic Resonance Spectroscopy

Mass Spectrometry

An Introduction to Organometallic Compounds

Aldehydes and Ketones

Carboxylic Acids

Functional Derivatives of Carboxylic Acids

Enolate Anions and Enamines

Dienes, Conjugated Systems, and Pericyclic Reactions

Benzene and the Concept of Aromaticity

Reactions of Benzene and Its Derivatives

Amines

Catalytic Carbon-Carbon Bond Formation

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids

Organic Polymer Chemistry

Filters

Which of the following alkenes undergoes the least exothermic hydrogenation upon treatment with H₂/Pd?

The reagents that could effect the following conversion are H₂ and Ni.

What type of reactive intermediate is formed in the reaction of an alkene with Br₂ and water to give a bromohydrin?

What is the correct order of exothermicity for hydrogenation of the following butenes upon treatment with H₂/Pd (more exothermic > less exothermic)?

Which of the following alkenes undergoes the most exothermic hydrogenation upon treatment with H₂/Pd?

The reagents that could effect the following conversion are: BH₃, then H₂O₂ and NaOH.