Question 1

What is (are)  the major organic product(s)  obtained from the following reaction?

Accepted Answer

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

Question 2

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

Accepted Answer

H₂O, H₂SO₄
or...

Question 3

"X" is a naturally occurring terpenoid with the molecular formula C10H18O. It is isolated from geranium oil. "X" reacts with (S) -BINAP-RuCl3 and (R) -BINAP-RuCl3 to form A and B, respectively. Identify "X". ​ 10H18O. It is isolated from geranium oil.  X  reacts with (S) -BINAP-RuCl3 and (R) -BINAP-RuCl3 to form A and B, respectively. Identify  X . ​   A)  Naproxen B)  Geraniol C)  Cannabinoid D)  Curcuminoid" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   Naproxen
B)   Geraniol
C)   Cannabinoid
D)   CurcuminoidE) C) and D)
F) A) and B)

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

Consider the following reaction sequence.  The product of this sequence is

Accepted Answer

A) True 
 B)False

Question 6

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

Accepted Answer

H₂, transit...

Question 7

Which of the following alkenes is most likely to undergo rearrangement upon acid-catalyzed hydration (treatment with aqueous H2SO4) ? 2SO4) ?   A)  1 B)  2 C)  3 D)  4" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   1
B)   2
C)   3
D)   4E) A) and C)
F) B) and C)

Question 8

Which of the following concepts explains Markovnikov's rule as applied to the addition of HBr to propene?

Accepted Answer

A)   the relative stability of carbocations
B)   the nucleophilicity of bromide anion
C)   the acidity of HBr
D)   the aufbau principleE) None of the above
F) A) and C)

Question 9

What type of reaction mechanism accounts for the reaction of an alkene with aqueous acid to give an alcohol?

Accepted Answer

A)   nucleophilic addition
B)   electrophilic addition
C)   radical addition
D)   eliminationE) A) and B)
F) All of the above

Question 10

The reduction of an alkene to an alkane by hydrogen in the presence of a catalyst is known as _____.

Accepted Answer

catalytic ...

Question 11

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

Accepted Answer

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

Question 12

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

Accepted Answer

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

Question 13

Identify "X" and "Y" in the following reaction. ​ 2/H2O in DMSO. B)  X is cyclopentene, and Y is Pd/H2. C)  X is cyclopentadiene, and Y is H2O. D)  X is 2-methylcyclopentadiene, and Y is Br2 in DMSO." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   X is 1-methylcyclopentene, and Y is Br2/H2O in DMSO.
B)   X is cyclopentene, and Y is Pd/H2.
C)   X is cyclopentadiene, and Y is H2O.
D)   X is 2-methylcyclopentadiene, and Y is Br2 in DMSO.E) B) and C)
F) All of the above

Question 14

What type of carbocation is shown?

Accepted Answer

A)   primary
B)   secondary
C)   tertiary
D)   quaternaryE) B) and D)
F) A) and C)

Question 15

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

Accepted Answer

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

Question 16

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

Accepted Answer

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

Question 17

Br2 in CCl4 can be used to distinguish cyclohexene from cyclohexane.

Accepted Answer

A) True 
 B)False

Question 18

What is the best choice of reagent(s)  to perform the following transformation? 2O, H2SO4 B)  HgSO4; followed by NaBH4 C)  BH3; followed by H2O2 D)  OsO4; followed by NaHSO3" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   H2O, H2SO4
B)   HgSO4; followed by NaBH4
C)   BH3; followed by H2O2
D)   OsO4; followed by NaHSO3E) A) and D)
F) B) and D)

Question 19

Provide a neatly drawn mechanism for the following reaction, including curved arrows to show the movement of pairs of electrons and the structure of reactive intermediates.

Accepted Answer

The reaction proceeds in two s...

Question 20

What type of reactive intermediate is formed in the reaction of an alkene with HBr to give a bromoalkane?

Accepted Answer

A)   carbocation
B)   carbanion
C)   radical
D)   cyclic bromonium ionE) A) and C)
F) A) and B)

Exam 6: Reactions of Alkenes

Consider the following reaction sequence. The product of this sequence is

Correct AnswerverifiedShow Answer

The reduction of an alkene to an alkane by hydrogen in the presence of a catalyst is known as _____.

Correct Answerverifiedcatalytic ...View AnswerShow Answer

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?

Correct AnswerverifiedShow Answer

Provide a neatly drawn mechanism for the following reaction, including curved arrows to show the movement of pairs of electrons and the structure of reactive intermediates.

Correct AnswerverifiedThe reaction proceeds in two s...View AnswerShow Answer

Br2 in CCl4 can be used to distinguish cyclohexene from cyclohexane.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

"X" is a naturally occurring terpenoid with the molecular formula C10H18O. It is isolated from geranium oil. "X" reacts with (S) -BINAP-RuCl3 and (R) -BINAP-RuCl3 to form A and B, respectively. Identify "X". ​

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

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Identify "X" and "Y" in the following reaction. ​

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

Correct AnswerverifiedH2, transit...View AnswerShow Answer

What type of reactive intermediate is formed in the reaction of an alkene with HBr to give a bromoalkane?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedH2O, H2SO4or...View AnswerShow Answer

Which of the following alkenes is most likely to undergo rearrangement upon acid-catalyzed hydration (treatment with aqueous H2SO4) ?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What is (are) the major organic product(s) obtained from the following reaction?

Correct AnswerverifiedShow Answer

What type of reaction mechanism accounts for the reaction of an alkene with aqueous acid to give an alcohol?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What type of carbocation is shown?

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Which of the following concepts explains Markovnikov's rule as applied to the addition of HBr to propene?

Correct AnswerverifiedShow Answer

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catalytic ...
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The reaction proceeds in two s...
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Br₂in CCl₄ can be used to distinguish cyclohexene from cyclohexane.

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"X" is a naturally occurring terpenoid with the molecular formula C₁₀H₁₈O. It is isolated from geranium oil. "X" reacts with (S) -BINAP-RuCl₃ and (R) -BINAP-RuCl₃ to form A and B, respectively. Identify "X".

Correct Answer
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Identify "X" and "Y" in the following reaction.

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H₂, transit...
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H₂O, H₂SO₄
or...
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Which of the following alkenes is most likely to undergo rearrangement upon acid-catalyzed hydration (treatment with aqueous H₂SO₄) ?

Correct Answer
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