Question 1

Select the strongest base in each pair of compounds.

Accepted Answer

A)  A and C 
B)  A and D 
C)  B and C 
D)  B and D 
A)  A and C 
B)  A and D 
C)  B and C 
D)  B and D

Question 2

Which of the following types of amines can form hydrogen bonds with water?

Accepted Answer

A)  1° 
B)  2° 
C)  3° 
D)  All can hydrogen bond with water. 
A)  1° 
B)  2° 
C)  3° 
D)  All can hydrogen bond with water.

Question 3

What is the IUPAC name of the following compound?

Accepted Answer

A)  1-amino-4-methylbenzene 
B)  4-aminotoluene 
C)  4-methylaniline 
D)  p-toluidine 
A)  1-amino-4-methylbenzene 
B)  4-aminotoluene 
C)  4-methylaniline 
D)  p-toluidine

Question 4

Which of the following compounds is (S)-N-methyl-2-butanamine?

Accepted Answer

A)  (i) only 
B)  (ii) only 
C)  (iii) only 
D)  (i) and (ii) only 
A)  (i) only 
B)  (ii) only 
C)  (iii) only 
D)  (i) and (ii) only

Question 5

If the Kb of a certain aromatic amine is 2.24 × 10-9, what is the pKb?

Accepted Answer

A)  2.24 
B)  9.22 
C)  -8.65 
D)  8.65 
A)  2.24 
B)  9.22 
C)  -8.65 
D)  8.65

Question 6

Which type of amines cannot hydrogen bond with water?

Accepted Answer

A)  1° 
B)  2° 
C)  3° 
D)  None, they can all hydrogen bond with water. 
A)  1° 
B)  2° 
C)  3° 
D)  None, they can all hydrogen bond with water.

Question 7

Which of the following is characteristic of relatively low molecular weight amines?

Accepted Answer

A)  They are odorless. 
B)  They have mild, pleasant odors. 
C)  They have strong, pleasant odors. 
D)  They have pungent, unpleasant odors. 
A)  They are odorless. 
B)  They have mild, pleasant odors. 
C)  They have strong, pleasant odors. 
D)  They have pungent, unpleasant odors.

Question 8

What is the IUPAC name of isopropylamine?

Accepted Answer

A)  propanamine 
B)  1-propanamine 
C)  2-propanamine 
D)  2-propylamine 
A)  propanamine 
B)  1-propanamine 
C)  2-propanamine 
D)  2-propylamine

Question 9

What is the IUPAC name of the following compound?

Accepted Answer

A)  5-aminopentylamine 
B)  1,5-pentanediamine 
C)  1,5-diaminopentane 
D)  5-amino-1-pentanamine 
A)  5-aminopentylamine 
B)  1,5-pentanediamine 
C)  1,5-diaminopentane 
D)  5-amino-1-pentanamine

Question 10

Which of the following amines will be most soluble in water?

Accepted Answer

A)  1-hexanamine 
B)  N,N-dimethyl-1-hexanamine 
C)  1-butanamine 
D)  1,4-butanediamine 
A)  1-hexanamine 
B)  N,N-dimethyl-1-hexanamine 
C)  1-butanamine 
D)  1,4-butanediamine

Question 11

What is the name of the following compound?

Accepted Answer

A)  aniline bromine 
B)  aniline bromide 
C)  anilinium bromine 
D)  anilinium bromide 
A)  aniline bromine 
B)  aniline bromide 
C)  anilinium bromine 
D)  anilinium bromide

Question 12

The following is the formula for gabapentin used in the treatment of epilepsy.   How many stereocenters are there in this compound?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  There are no stereocenters. 
A)  1 
B)  2 
C)  3 
D)  There are no stereocenters.

Question 13

Which of the following is not a heterocyclic aliphatic amine?

Accepted Answer

A)  piperidine 
B)  pyrrolidine 
C)  pyrimidine 
D)  They are all heterocyclic aliphatic amines. 
A)  piperidine 
B)  pyrrolidine 
C)  pyrimidine 
D)  They are all heterocyclic aliphatic amines.

Question 14

What is the IUPAC name of the following compound?

Accepted Answer

A)  ethylmethylpropylamine 
B)  ethylisopropylmethylamine 
C)  N-ethyl-N-methyl-1-propanamine 
D)  N-ethyl-N-methyl-2-propanamine 
A)  ethylmethylpropylamine 
B)  ethylisopropylmethylamine 
C)  N-ethyl-N-methyl-1-propanamine 
D)  N-ethyl-N-methyl-2-propanamine

Question 15

Consider the following flow diagram. A mixture containing 2-octanol, cyclohexanamine, and potassium chloride was subjected to this procedure in a laboratory experiment.  
-In what location does the potassium chloride end up?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  It may be found in several layers. 
A)  A 
B)  B 
C)  C 
D)  It may be found in several layers.

Question 16

Which of the following has the lowest boiling point?

Accepted Answer

A)  butane 
B)  1-propanamine 
C)  1-propanol 
D)  2-propanamine 
A)  butane 
B)  1-propanamine 
C)  1-propanol 
D)  2-propanamine

Question 17

What is the common name of the following compound?

Accepted Answer

A)  ethylmethylpropylamine 
B)  N-ethyl-N-methylpropanamine 
C)  N-ethyl-N-methyl-1-propanamine 
D)  N-ethyl-N-methyl-2-propanamine 
A)  ethylmethylpropylamine 
B)  N-ethyl-N-methylpropanamine 
C)  N-ethyl-N-methyl-1-propanamine 
D)  N-ethyl-N-methyl-2-propanamine

Question 18

Which of the following is a useful approach for separating cyclopentanamine and cyclopentanol which are both dissolved in a solution of diethyl ether?

Accepted Answer

A)  Wash the ether solution with aqueous HCl. 
B)  Wash the ether solution with aqueous NaOH. 
C)  Wash the ether solution with an aqueous ammonia solution. 
D)  None of these would affect the separation. 
A)  Wash the ether solution with aqueous HCl. 
B)  Wash the ether solution with aqueous NaOH. 
C)  Wash the ether solution with an aqueous ammonia solution. 
D)  None of these would affect the separation.

Question 19

The following is the formula for gabapentin used in the treatment of epilepsy.   What type of amine is gabapentin?

Accepted Answer

A)  1° 
B)  2° 
C)  3° 
A)  1° 
B)  2° 
C)  3°

Question 20

Which of the following is a not a primary amine?

Accepted Answer

A)  Benzedrine 
B)  Fastin 
C)  Methedrine 
D)  None, they are all primary amines. 
A)  Benzedrine 
B)  Fastin 
C)  Methedrine 
D)  None, they are all primary amines.

Exam 16: Amines

Select the strongest base in each pair of compounds.

Which of the following types of amines can form hydrogen bonds with water?

What is the IUPAC name of the following compound?

Which of the following compounds is (S)-N-methyl-2-butanamine?

If the Kb of a certain aromatic amine is 2.24 × 10-9, what is the pKb?

Which type of amines cannot hydrogen bond with water?

Which of the following is characteristic of relatively low molecular weight amines?

What is the IUPAC name of isopropylamine?

What is the IUPAC name of the following compound?

Which of the following amines will be most soluble in water?

What is the name of the following compound?

The following is the formula for gabapentin used in the treatment of epilepsy. How many stereocenters are there in this compound?

Which of the following is not a heterocyclic aliphatic amine?

What is the IUPAC name of the following compound?

Consider the following flow diagram. A mixture containing 2-octanol, cyclohexanamine, and potassium chloride was subjected to this procedure in a laboratory experiment. -In what location does the potassium chloride end up?

Which of the following has the lowest boiling point?

What is the common name of the following compound?

Which of the following is a useful approach for separating cyclopentanamine and cyclopentanol which are both dissolved in a solution of diethyl ether?

The following is the formula for gabapentin used in the treatment of epilepsy. What type of amine is gabapentin?

Which of the following is a not a primary amine?

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If the K_b of a certain aromatic amine is 2.24 × 10^-9, what is the pK_b?