Question 1

Which of the following amines does not have a pungent odor?

Accepted Answer

A)  (i) only 
B)  (ii) only 
C)  (iii) only 
D)  none, they all have a pungent odor 
A)  (i) only 
B)  (ii) only 
C)  (iii) only 
D)  none, they all have a pungent odor

Question 2

Which of the following is true?

Accepted Answer

A)  No amines form hydrogen bonds. 
B)  The N−H- - - -N hydrogen bond is stronger than the O−H- - - -O hydrogen bond. 
C)  The N−H- - - -N hydrogen bond is the same strength as the O−H- - - -O hydrogen bond. 
D)  The N−H- - - -N hydrogen bond is weaker than the O−H- - - -O hydrogen bond. 
A)  No amines form hydrogen bonds. 
B)  The N−H- - - -N hydrogen bond is stronger than the O−H- - - -O hydrogen bond. 
C)  The N−H- - - -N hydrogen bond is the same strength as the O−H- - - -O hydrogen bond. 
D)  The N−H- - - -N hydrogen bond is weaker than the O−H- - - -O hydrogen bond.

Question 3

Which of the following gives the correct order of solubility in water?

Accepted Answer

A)  (i) > (ii) > (iii) 
B)  (ii) > (i) > (iii) 
C)  (iii) > (ii) > (i) 
D)  (iii) > (i) > (ii) 
A)  (i) > (ii) > (iii) 
B)  (ii) > (i) > (iii) 
C)  (iii) > (ii) > (i) 
D)  (iii) > (i) > (ii)

Question 4

Which of the following is not an alkaloid?

Accepted Answer

A)  cocaine 
B)  coniine 
C)  nicotine 
D)  phentermine 
A)  cocaine 
B)  coniine 
C)  nicotine 
D)  phentermine

Question 5

If the Kb of a certain amine is 4.50 × 10-4, what is the approximate ratio of the protonated to the unprotonated amine, respectively, at pH 7.00? Assume the following reaction. RNH2 (aq) + H2O(l)   RNH3+(aq) + OH-(aq)

Accepted Answer

A)  4500 : 1 
B)  1 : 4500 
C)  45 : 1 
D)  1 : 45 
A)  4500 : 1 
B)  1 : 4500 
C)  45 : 1 
D)  1 : 45

Question 6

Which of the following compounds is a heterocyclic aliphatic amine?

Accepted Answer

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

Question 7

What is the IUPAC name of the following compound?

Accepted Answer

A)  N-ethylcyclohexanamine 
B)  N-cyclohexylethanamine 
C)  N-ethylaniline 
D)  N-cyclohexylethylamine 
A)  N-ethylcyclohexanamine 
B)  N-cyclohexylethanamine 
C)  N-ethylaniline 
D)  N-cyclohexylethylamine

Question 8

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 cyclohexanamine 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 9

Procaine hydrochloride is marketed as Novocaine. Which of the following is true when comparing Procaine and Novocaine?

Accepted Answer

A)  Neither is susceptible to oxidation. 
B)  Both compounds are very susceptible to oxidation. 
C)  Novocaine is very susceptible oxidation, but Procaine is not. 
D)  Procaine is very susceptible to oxidation, but Novocaine is not. 
A)  Neither is susceptible to oxidation. 
B)  Both compounds are very susceptible to oxidation. 
C)  Novocaine is very susceptible oxidation, but Procaine is not. 
D)  Procaine is very susceptible to oxidation, but Novocaine is not.

Question 10

What is the common name of the following compound?

Accepted Answer

A)  methylisopropylamine 
B)  isopropylmethylamine 
C)  N-methyl-2-propanamine 
D)  none of these 
A)  methylisopropylamine 
B)  isopropylmethylamine 
C)  N-methyl-2-propanamine 
D)  none of these

Question 11

(S)-Methamphetamine, also called Methedrine, is an example of which type of amine?

Accepted Answer

A)  primary aliphatic 
B)  primary aromatic 
C)  secondary aliphatic 
D)  secondary aromatic 
A)  primary aliphatic 
B)  primary aromatic 
C)  secondary aliphatic 
D)  secondary aromatic

Question 12

What is the IUPAC name of (CH3)2NC2H5?

Accepted Answer

A)  ethyldimethylamine 
B)  dimethylethylamine 
C)  N,N-dimethylethanamine 
D)  none of these 
A)  ethyldimethylamine 
B)  dimethylethylamine 
C)  N,N-dimethylethanamine 
D)  none of these

Question 13

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 1-octanol 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 14

Which of the following gives the correct order of solubility in water?

Accepted Answer

A)  (i) > (ii) > (iii) 
B)  (ii) > (i) > (iii) 
C)  (iii) > (ii) > (i) 
D)  (iii) > (i) > (ii) 
A)  (i) > (ii) > (iii) 
B)  (ii) > (i) > (iii) 
C)  (iii) > (ii) > (i) 
D)  (iii) > (i) > (ii)

Question 15

What is the common 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 16

Nitrogen's abundance among organic compounds is primarily the result of the wide distribution of which class of compounds?

Accepted Answer

A)  alcohols 
B)  amides 
C)  amines 
D)  imides 
A)  alcohols 
B)  amides 
C)  amines 
D)  imides

Question 17

In what form do aliphatic amines exist at physiological pH (pH= 7.4)?

Accepted Answer

A)  largely as neutral molecules 
B)  largely as their conjugate acids 
C)  as a mixture of neutral molecules and their conjugate acid, but with a slight predominance of the conjugate acid 
D)  as a 50/50 mixture of neutral molecules and their conjugate acids 
A)  largely as neutral molecules 
B)  largely as their conjugate acids 
C)  as a mixture of neutral molecules and their conjugate acid, but with a slight predominance of the conjugate acid 
D)  as a 50/50 mixture of neutral molecules and their conjugate acids

Question 18

Which of the following is a primary amine?

Accepted Answer

A)  albuterol 
B)  epinephrine 
C)  norepinephrine 
D)  all of these 
A)  albuterol 
B)  epinephrine 
C)  norepinephrine 
D)  all of these

Question 19

Which of the following is not a chiral molecule?

Accepted Answer

A)  Amphetamine 
B)  Phentermine 
C)  Methedrine 
D)  None of these, they are all chiral. 
A)  Amphetamine 
B)  Phentermine 
C)  Methedrine 
D)  None of these, they are all chiral.

Question 20

What is the IUPAC name of isobutylamine?

Accepted Answer

A)  1-methyl-1-propanamine 
B)  2-methyl-1-propanamine 
C)  N-methyl-1-propanamine 
D)  2,2-dimethylethanamine 
A)  1-methyl-1-propanamine 
B)  2-methyl-1-propanamine 
C)  N-methyl-1-propanamine 
D)  2,2-dimethylethanamine

Exam 16: Amines

Which of the following amines does not have a pungent odor?

Which of the following is true?

Which of the following gives the correct order of solubility in water?

Which of the following is not an alkaloid?

If the Kb of a certain amine is 4.50 × 10-4, what is the approximate ratio of the protonated to the unprotonated amine, respectively, at pH 7.00? Assume the following reaction. RNH2 (aq) + H2O(l) RNH3+(aq) + OH-(aq)

Which of the following compounds is 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 cyclohexanamine end up?

Procaine hydrochloride is marketed as Novocaine. Which of the following is true when comparing Procaine and Novocaine?

What is the common name of the following compound?

(S)-Methamphetamine, also called Methedrine, is an example of which type of amine?

What is the IUPAC name of (CH3)2NC2H5?

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 1-octanol end up?

Which of the following gives the correct order of solubility in water?

What is the common name of the following compound?

Nitrogen's abundance among organic compounds is primarily the result of the wide distribution of which class of compounds?

In what form do aliphatic amines exist at physiological pH (pH= 7.4)?

Which of the following is a primary amine?

Which of the following is not a chiral molecule?

What is the IUPAC name of isobutylamine?

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If the K_b of a certain amine is 4.50 × 10^-4, what is the approximate ratio of the protonated to the unprotonated amine, respectively, at pH 7.00? Assume the following reaction. RNH₂ (aq) + H₂O(l) RNH₃⁺(aq) + OH^-(aq)

What is the IUPAC name of (CH₃)₂NC₂H₅?