Question 1

Which reagent(s)given below could be used to synthesize cis-1,2-cycloheptanediol from cycloheptene?

Accepted Answer

A)  KMnO4,OH - ,5oC 
B)  KMnO4,H3O+,75oC 
C)  H2SO4,heat 
D)  All of these 
E)  None of these 
A)  KMnO4,OH - ,5oC 
B)  KMnO4,H3O+,75oC 
C)  H2SO4,heat 
D)  All of these 
E)  None of these

Question 2

What is the major product for the following reaction?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E) 
  
A) 
  
B) 
  
C) 
  
D) 
  
E)

Question 3

What would be the major product of the following reaction?

Accepted Answer

A)  Equal amounts of I and II 
B)  Equal amounts of II and III 
C)  Equal amounts of III and IV 
D)  I and II as major products,III and IV as minor products 
E)  All of the above in equal amounts 
A)  Equal amounts of I and II 
B)  Equal amounts of II and III 
C)  Equal amounts of III and IV 
D)  I and II as major products,III and IV as minor products 
E)  All of the above in equal amounts

Question 4

Hydroboration-oxidation is a reaction with _________ stereochemistry and ________________ regiochemistry.

Accepted Answer

syn,anti-M

Question 5

What is the major product of the following reaction sequence?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E) 
  
A) 
  
B) 
  
C) 
  
D) 
  
E)

Question 6

Which reaction of an alkene proceeds with anti addition?

Accepted Answer

A)  Hydroboration/oxidation 
B)  Bromination 
C)  Oxidation with cold KMnO4 
D)  Hydrogenation 
E)  Oxymercuration-demercuration 
A)  Hydroboration/oxidation 
B)  Bromination 
C)  Oxidation with cold KMnO4 
D)  Hydrogenation 
E)  Oxymercuration-demercuration

Question 7

What is the major product for the following reaction?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E) 
  
A) 
  
B) 
  
C) 
  
D) 
  
E)

Question 8

The "decolorization" of molecular bromine is often used as a functional group test to detect the presence of ________________.

Accepted Answer

carbon-carbon multip

Question 9

What is the major product for the following reaction?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E) 
  
A) 
  
B) 
  
C) 
  
D) 
  
E)

Question 10

Which reaction is NOT stereospecific?

Accepted Answer

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

Question 11

An optically active compound,A,with the molecular formula C7H12 reacts with cold dilute KMnO4 and gives IR absorption at about 3300 cm-1.On catalytic hydrogenation,A is converted to B (C7H16)and B is also optically active.Which is a possible structure for A?

Accepted Answer

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

Question 12

Which of these is not a possible product when cyclopentene reacts with an aqueous solution of bromine?

Accepted Answer

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

Question 13

What is the major product of the following reaction sequence?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E)  More than one of the above 
A) 
  
B) 
  
C) 
  
D) 
  
E)  More than one of the above

Question 14

Cyclohexene reacts with bromine to yield 1,2-dibromocyclohexane.Molecules of the product would:

Accepted Answer

A)  be a racemic form and,in their most stable conformation,they would have both bromine atoms equatorial. 
B)  be a racemic form and,in their most stable conformation,they would have one bromine atom equatorial and one axial. 
C)  be a meso compound and,in its most stable conformation,it would have both bromine atoms equatorial. 
D)  be a meso compound and,in its most stable conformation,it would have one bromine atom equatorial and one axial. 
E)  be a pair of diastereomers and,in their most stable conformation,one would have the bromines equatorial and axial,and the other would have the bromines equatorial and equatorial. 
A)  be a racemic form and,in their most stable conformation,they would have both bromine atoms equatorial. 
B)  be a racemic form and,in their most stable conformation,they would have one bromine atom equatorial and one axial. 
C)  be a meso compound and,in its most stable conformation,it would have both bromine atoms equatorial. 
D)  be a meso compound and,in its most stable conformation,it would have one bromine atom equatorial and one axial. 
E)  be a pair of diastereomers and,in their most stable conformation,one would have the bromines equatorial and axial,and the other would have the bromines equatorial and equatorial.

Question 15

Select the structure of the major product formed in the following reaction.

Accepted Answer

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

Question 16

When a particular stereoisomer reacts in such a way that it gives a particular stereoisomer as a product,even if more than one stereoisomer is theoretically possible,the reaction is said to be _____________.

Accepted Answer

The answer of When a particular stereoisomer reacts in such...

Question 17

The most resistant compound to the action of hot alkaline KMnO4 is:

Accepted Answer

A)  Pentane 
B)  1-Pentene 
C)  2-Pentene 
D)  2-Pentyne 
E)  Cyclopentene 
A)  Pentane 
B)  1-Pentene 
C)  2-Pentene 
D)  2-Pentyne 
E)  Cyclopentene

Question 18

What is the major product of the following reaction sequence?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E)  None of the above 
A) 
  
B) 
  
C) 
  
D) 
  
E)  None of the above

Question 19

What is the major product of the following reaction sequence?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E)  More than one of the above 
A) 
  
B) 
  
C) 
  
D) 
  
E)  More than one of the above

Question 20

Draw Fischer projection formula(s)of the major product(s)of the reaction between Z-3-methyl-3-hexene and cold,alkaline KMnO4.

Accepted Answer

@#IMG-DLM& The reaction takes

Exam 8: Alkenes and Alkynes Ii: Addition Reactions

Which reagent(s)given below could be used to synthesize cis-1,2-cycloheptanediol from cycloheptene?

What is the major product for the following reaction?

What would be the major product of the following reaction?

Hydroboration-oxidation is a reaction with _________ stereochemistry and ________________ regiochemistry.

What is the major product of the following reaction sequence?

Which reaction of an alkene proceeds with anti addition?

What is the major product for the following reaction?

The "decolorization" of molecular bromine is often used as a functional group test to detect the presence of ________________.

What is the major product for the following reaction?

Which reaction is NOT stereospecific?

An optically active compound,A,with the molecular formula C7H12 reacts with cold dilute KMnO4 and gives IR absorption at about 3300 cm-1.On catalytic hydrogenation,A is converted to B (C7H16)and B is also optically active.Which is a possible structure for A?

Which of these is not a possible product when cyclopentene reacts with an aqueous solution of bromine?

What is the major product of the following reaction sequence?

Cyclohexene reacts with bromine to yield 1,2-dibromocyclohexane.Molecules of the product would:

Select the structure of the major product formed in the following reaction.

When a particular stereoisomer reacts in such a way that it gives a particular stereoisomer as a product,even if more than one stereoisomer is theoretically possible,the reaction is said to be _____________.

The most resistant compound to the action of hot alkaline KMnO4 is:

What is the major product of the following reaction sequence?

What is the major product of the following reaction sequence?

Draw Fischer projection formula(s)of the major product(s)of the reaction between Z-3-methyl-3-hexene and cold,alkaline KMnO4.

Carbon Compounds and Chemical Bonds

Representative Carbon Compounds: Functional Groups, Intermolecular Forces, and Infrared Ir Spectroscopy

An Introduction to Organic Reactions: Acids and Bases

Alkanes: Nomenclature, Conformational Analysis, and an Introduction to Synthesis

Stereochemistry: Chiral Molecules

Ionic Reactions - Nucleophilic Substitution and Elimination Reactions of Alkyl Halides

Alkenes and Alkynes I: Properties and Synthesis, Elimination Reactions of Alkyl Halides

Nuclear Magnetic Resonance and Mass Spectrometry: Tools for Structure Determination

Radical Reactions

Alcohols and Ethers

Alcohols From Carbonyl Compounds Oxidation-Reduction and Organometallic Compounds

Conjugated Unsaturated Systems

Aromatic Compounds

Reactions of Aromatic Compounds

Aldehydes and Ketones I Nucleophilic Addition to the Carbonyl Group

Aldehydes and Ketones Ii Aldol Reactions

Carboxylic Acids and Their Derivatives Nucleophilic Addition - Elimination at the Acyl Carbon

Synthesis and Reactions of Beta-Dicarbonyl Compounds: More Chemistry of Enolate Ions

Amines

Phenols and Aryl Halides: Nucleophilic Aromatic Substitution

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids and Protein Synthesis

Filters

Hydroboration-oxidation is a reaction with _ stereochemistry and ________ regiochemistry.

An optically active compound,A,with the molecular formula C₇H₁₂ reacts with cold dilute KMnO₄and gives IR absorption at about 3300 cm^-1.On catalytic hydrogenation,A is converted to B (C₇H₁₆)and B is also optically active.Which is a possible structure for A?

The most resistant compound to the action of hot alkaline KMnO₄ is:

Draw Fischer projection formula(s)of the major product(s)of the reaction between Z-3-methyl-3-hexene and cold,alkaline KMnO₄.