Question 1

What is the best choice of reagent to perform the following transformation? 2SO4 B) H2O C) NaOCH3 D) KOtBu" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  H2SO4
B)  H2O
C)  NaOCH3
D)  KOtBuE) All of the above
F) None of the above

Question 2

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

Accepted Answer

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

Question 3

The following reaction would be classified as an elimination.

Accepted Answer

A) True 
 B)False

Question 4

Consider the pair of reactions below to answer the following question(s).
a.  
or
b. 
-These reactions are classified as ________________reactions.

Accepted Answer

The answer of Consider the pair of reactions below to...

Question 5

Consider the pair of reactions below to answer the following question(s).
a.  
or
b. 
-In the reactions a and b if concentration of OH- and SH-, respectively, were doubled, the rate of the reactions would ___________.

Accepted Answer

double inc...

Question 6

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

Accepted Answer

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

Question 7

Which of the following is best set of conditions for the preparation of tert-butanol?

Accepted Answer

A)  tert-butyl fluoride in water
B)  tert-butyl bromide in water
C)  tert-butyl fluoride and NaOH in DMSO
D)  tert-butyl bromide and NaOH in DMSOE) A) and B)
F) None of the above

Question 8

Which of the following represents the transition state of the rate-determining step in the reaction between tert-butyl iodide and water leading to elimination?

Accepted Answer

A)  1
B)  2
C)  3
D)  4E) All of the above
F) B) and C)

Question 9

Draw all of the chloroalkanes that undergo base-promoted dehydrochlorination to form the following alkene?

Accepted Answer

The answer of Draw all of the chloroalkanes that undergo...

Question 10

Consider the reaction below to answer the following question(s). 
-Compound B by is formed by an _____ mechanism.

Accepted Answer

The answer of Consider the reaction below to answer the...

Question 11

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

Accepted Answer

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

Question 12

Which of the following anions is the best leaving group in an SN1 reaction?

Accepted Answer

A)  F-
B)  HO-
C)  NH2-
D)  Cl-E) A) and C)
F) C) and D)

Question 13

Which of the following represents the transition state of the reaction between methyl iodide and ammonia?

Accepted Answer

A)  1
B)  2
C)  3
D)  4E) None of the above
F) A) and C)

Question 14

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

Accepted Answer

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

Question 15

Which of the following compounds is the most nucleophilic in polar protic solvents?

Accepted Answer

A)  H2O
B)  NH3
C)  H2S
D)  PH3E) B) and C)
F) A) and B)

Question 16

Which of the following most favors elimination rather substitution in a reaction with 2-bromopropane?

Accepted Answer

A)  sodium methoxide
B)  sodium ethoxide
C)  sodium isoproxide
D)  sodium tert-butoxideE) None of the above
F) A) and C)

Question 17

Which of the following compounds undergoes the most rapid hydrolysis reaction?

Accepted Answer

A)  1
B)  2
C)  3
D)  4E) A) and B)
F) All of the above

Question 18

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

Accepted Answer

A)  3-methyl-1-pentyne
B)  3-methyl-2-pentyne
C)  1-propene + propyne
D)  4-methyl-2-penteneE) A) and B)
F) A) and C)

Question 19

Which of the following most favors elimination rather substitution in a reaction with sodium methoxide?

Accepted Answer

A)  bromomethane
B)  bromoethane
C)  1-bromopropane
D)  2-bromopropaneE) B) and C)
F) A) and B)

Question 20

Which of the following alkyl halides undergoes the fastest solvolysis reaction with formic acid, HCOOH?

Accepted Answer

A)  tert-butyl fluoride
B)  tert-butyl chloride
C)  tert-butyl bromide
D)  tert-butyl iodideE) All of the above
F) B) and C)

Exam 9: Nucleophilic Substitution and Beta-Elimination

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

Correct AnswerverifiedShow Answer

Consider the pair of reactions below to answer the following question(s). a. or b. -In the reactions a and b if concentration of OH- and SH-, respectively, were doubled, the rate of the reactions would ___________.

Correct Answerverifieddouble inc...View AnswerShow Answer

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

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Which of the following represents the transition state of the reaction between methyl iodide and ammonia?

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Which of the following anions is the best leaving group in an SN1 reaction?

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The following reaction would be classified as an elimination.

Correct AnswerverifiedShow Answer

Which of the following most favors elimination rather substitution in a reaction with sodium methoxide?

Correct AnswerverifiedShow Answer

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

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

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Consider the reaction below to answer the following question(s). -Compound B by is formed by an _____ mechanism.

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Which of the following compounds undergoes the most rapid hydrolysis reaction?

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

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Which of the following is best set of conditions for the preparation of tert-butanol?

Correct AnswerverifiedShow Answer

Which of the following compounds is the most nucleophilic in polar protic solvents?

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Consider the pair of reactions below to answer the following question(s). a. or b. -These reactions are classified as ________________reactions.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following alkyl halides undergoes the fastest solvolysis reaction with formic acid, HCOOH?

Correct AnswerverifiedShow Answer

Which of the following represents the transition state of the rate-determining step in the reaction between tert-butyl iodide and water leading to elimination?

Correct AnswerverifiedShow Answer

Draw all of the chloroalkanes that undergo base-promoted dehydrochlorination to form the following alkene?

Correct AnswerverifiedShow Answer

Which of the following most favors elimination rather substitution in a reaction with 2-bromopropane?

Correct AnswerverifiedShow Answer

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Consider the pair of reactions below to answer the following question(s). a. or b. -In the reactions a and b if concentration of OH^- and SH^-, respectively, were doubled, the rate of the reactions would ___________.

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double inc...
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Which of the following anions is the best leaving group in an S_N1 reaction?

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