Question 1

Why are alkylamines more basic than arylamines?

Accepted Answer

A)  The lone pair electrons are localized in alkylamines and delocalized in arylamines.
B)  The lone pair electrons are delocalized in alkylamines and localized in arylamines.
C)  The lone pair electrons are less readily available in alkylamines.
D)  The lone pair electrons are more readily available in arylamines.E) All of the above
F) A) and B)

Question 2

In the preparation of primary amines,how can direct nucleophilic substitution between NH3 and alkyl halide be made more practical than reacting NH3 and the alkyl halide in a 1:1 ratio?

Accepted Answer

A)  Use a large excess of NH3.
B)  Use a large excess of alkyl halide.
C)  Use a limited amount of NH3.
D)  Make the alkyl halide sterically hindered.E) A) and D)
F) All of the above

Question 3

What is the IUPAC name of the following compound?

Accepted Answer

A)  3-methyl-1-hexanamine
B)  4-methyl-1-hexylamine
C)  4-methyl-1-hexanamine
D)  3-methyl-6-hexylamineE) A) and C)
F) B) and C)

Question 4

Rank the following compounds in order of increasing basicity,putting the least basic first.

Accepted Answer

A)  II 
B)  I 
C)  IV 
D)  II < I < III < IVE) B) and D)
F) B) and C)

Question 5

What is the common name of the following compound?

Accepted Answer

A)  diisopropylamine
B)  dipropylamine
C)  diisopropanamine
D)  dibutylamineE) B) and C)
F) A) and C) A

Question 6

What is the IUPAC name of the following compound?

Accepted Answer

A)  N-ethyl-N-methylpentylamine
B)  N-ethyl-N-methyl-1-pentanamine
C)  N-methyl-3-octanamine
D)  N-ethyl-2-heptanamineE) B) and D)
F) All of the above

Question 7

Why is pyrrole much less basic than pyridine?

Accepted Answer

A)  The lone pair of electrons in pyrrole is located on an sp2 orbital.
B)  The lone pair of electrons in pyrrole is part of the aromatic p system.
C)  The lone pair of electrons in pyrrole is not part of the aromatic p system.
D)  The pKa of the conjugate acid of pyrrole is much greater than the conjugate acid of pyridine.E) B) and D)
F) A) and B)

Question 8

What is the common name of the following compound?

Accepted Answer

A)  isopropylamine
B)  sec-butylamine
C)  isobutylamine
D)  tert-butylamineE) A) and B)
F) None of the above

Question 9

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

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) A) and B)
F) A) and D)

Question 10

Rank the following compounds in increasing order of basicity,putting the least basic first.

Accepted Answer

A)  II 
B)  I 
C)  IV 
D)  I < II < III < IVE) None of the above
F) A) and B)

Question 11

Predict the major organic product of the following reaction.

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) C) and D)
F) All of the above

Question 12

Predict the major organic product of the following reaction.

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) A) and B)
F) All of the above

Question 13

What is the common name of the following compound?

Accepted Answer

A)  dimethylisobutylamine
B)  butyldimethylamine
C)  N,N-dimethylbutanamine
D)  sec-butyldimethylamineE) B) and D)
F) A) and B) D

Question 14

The mass spectrum of an amine shows a parent peak with an odd mass for the molecular ion.What does this tell you about the amine?

Accepted Answer

A)  The amine is a primary amine.
B)  The amine is a secondary amine.
C)  The amine contains an even number of N atoms.
D)  The amine contains an odd number of N atoms.E) A) and D)
F) A) and C)

Question 15

What is the correct assignment of the names of the following aromatic amines?

Accepted Answer

A)  I = pyrrolidine; II = pyrimidine; III = aniline
B)  I = pyrrole; II = pyrimidine; III = anisole
C)  I = pyrrolidine; II = pyridine; III =aniline
D)  I = pyrrole; II = pyridine; III = anilineE) None of the above
F) A) and B)

Question 16

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

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) A) and B)
F) None of the above B

Question 17

Which of the following amines are classified as secondary (2°) amines?

Accepted Answer

A)  I
B)  II
C)  III
D)  I and IIE) A) and D)
F) B) and D)

Question 18

Select the reagent(s) required for the following transformation. 2,HCl; (2) H2 B) (1) NaNO2,HCl; (2) H2O C) (1) NaNO2,HCl; (2) H3PO4 D) (1) NaNO2,HCl; (2) H3PO2" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  (1) NaNO2,HCl; (2) H2
B)  (1) NaNO2,HCl; (2) H2O
C)  (1) NaNO2,HCl; (2) H3PO4
D)  (1) NaNO2,HCl; (2) H3PO2E) A) and D)
F) A) and C)

Question 19

What is the common name of the following compound?

Accepted Answer

A)  isopropylamine
B)  2-methyl-2-propanamine
C)  tert-butylamine
D)  isobutylamineE) A) and B)
F) All of the above

Question 20

Consider the following multistep synthesis.  What is the structure of intermediate B?

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) B) and D)
F) None of the above

Exam 23: Amines

Why are alkylamines more basic than arylamines?

Correct AnswerverifiedShow Answer

In the preparation of primary amines,how can direct nucleophilic substitution between NH3 and alkyl halide be made more practical than reacting NH3 and the alkyl halide in a 1:1 ratio?

Correct AnswerverifiedShow Answer

What is the IUPAC name of the following compound?

Correct AnswerverifiedShow Answer

Rank the following compounds in order of increasing basicity,putting the least basic first.

Correct AnswerverifiedShow Answer

What is the common name of the following compound?

Correct AnswerverifiedA

What is the IUPAC name of the following compound?

Correct AnswerverifiedShow Answer

Why is pyrrole much less basic than pyridine?

Correct AnswerverifiedShow Answer

What is the common name of the following compound?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Rank the following compounds in increasing order of basicity,putting the least basic first.

Correct AnswerverifiedShow Answer

Predict the major organic product of the following reaction.

Correct AnswerverifiedShow Answer

Predict the major organic product of the following reaction.

Correct AnswerverifiedShow Answer

What is the common name of the following compound?

Correct AnswerverifiedD

The mass spectrum of an amine shows a parent peak with an odd mass for the molecular ion.What does this tell you about the amine?

Correct AnswerverifiedShow Answer

What is the correct assignment of the names of the following aromatic amines?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedB

Which of the following amines are classified as secondary (2°) amines?

Correct AnswerverifiedShow Answer

Select the reagent(s) required for the following transformation.

Correct AnswerverifiedShow Answer

What is the common name of the following compound?

Correct AnswerverifiedShow Answer

Consider the following multistep synthesis. What is the structure of intermediate B?

Correct AnswerverifiedShow Answer

Correct Answer
verified

In the preparation of primary amines,how can direct nucleophilic substitution between NH₃ and alkyl halide be made more practical than reacting NH₃ and the alkyl halide in a 1:1 ratio?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified