Question 1

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 2

What is the major product of the following reaction sequence?

Accepted Answer

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

Question 3

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

Accepted Answer

carbon-carbon multip...

Question 4

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  loading="lazy" src="/assets/images/blured-textbook.svg" class="d-inline m-1" alt="blured image" width="139" height="30"> The reaction takes ...

Question 5

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

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

Question 7

What is the major product of the following reaction sequence?

Accepted Answer

A)  
B)  
C)  
D)  
E)

Question 8

Which reaction is NOT stereospecific?

Accepted Answer

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

Question 9

What is the major product of the following reaction sequence?

Accepted Answer

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

Question 10

What is the major product for the following reaction?

Accepted Answer

A)  
B)  
C)  
D)  
E)

Question 11

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

Question 12

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

Accepted Answer

syn,anti-M...

Question 13

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

Accepted Answer

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

Question 14

What is the major product for the following reaction?

Accepted Answer

A)  
B)  
C)  
D)  
E)

Question 15

What is the major product of the following reaction sequence?

Accepted Answer

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

Question 16

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.

Question 17

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

Question 18

What is the major product for the following reaction?

Accepted Answer

A)  
B)  
C)  
D)  
E)

Question 19

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? 7H12 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?   A)  I B)  II C)  III D)  IV E)  V" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

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

Question 20

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

Exam 8: Alkenes and Alkynes Ii: Addition Reactions

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

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

Correct Answerverified The reaction takes ...View AnswerShow Answer

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

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Which reaction is NOT stereospecific?

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Which reaction of an alkene proceeds with anti addition?

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

Correct Answerverifiedcarbon-carbon multip...View AnswerShow Answer

What is the major product of the following reaction sequence?

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What is the major product for the following reaction?

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What would be the major product of the following reaction?

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

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

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What is the major product for the following reaction?

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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 _____________.

Correct AnswerverifiedShow Answer

What is the major product for the following reaction?

Correct AnswerverifiedShow Answer

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

Correct Answerverifiedsyn,anti-M...View AnswerShow Answer

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?

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What is the major product of the following reaction sequence?

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

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What is the major product of the following reaction sequence?

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What is the major product of the following reaction sequence?

Correct AnswerverifiedShow Answer

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

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The reaction takes ...
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carbon-carbon multip...
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Hydroboration-oxidation is a reaction with _ stereochemistry and ________ regiochemistry.

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syn,anti-M...
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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?

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

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