Question 1

Which of the following is an example of a tertiary amine?

Accepted Answer

A)  CH3NH2 
B)    
C)    
D)  none of these 
A)  CH3NH2 
B)    
C)    
D)  none of these

Question 2

Examine the following models. Atoms other than carbon and hydrogen are labeled with the symbol of the element.         A B C D
-Which of the models could be represented by the following condensed formula? CH3COOCH3

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  None of these is a derivative of a carboxylic acid. 
A)  A 
B)  B 
C)  C 
D)  D 
E)  None of these is a derivative of a carboxylic acid.

Question 3

Which of the following is an example of a secondary amine?

Accepted Answer

A)  CH3CH2NH2 
B)  CH3CH2CH2NHCH3 
C)    
D)  none of these 
A)  CH3CH2NH2 
B)  CH3CH2CH2NHCH3 
C)    
D)  none of these

Question 4

In organic compounds, which of the following elements normally forms two covalent bonds?

Accepted Answer

A)  carbon 
B)  hydrogen 
C)  nitrogen 
D)  oxygen 
A)  carbon 
B)  hydrogen 
C)  nitrogen 
D)  oxygen

Question 5

The chemical formula of methylamine is CH3NH2. How many unshared electron pairs are associated with a molecule of methylamine?

Accepted Answer

A)  1 
B)  2 
C)  8 
D)  14 
A)  1 
B)  2 
C)  8 
D)  14

Question 6

In which of the following classes of organic compounds must there be at least two oxygen atoms?

Accepted Answer

A)  carboxylic esters 
B)  ketones 
C)  both a and b 
D)  neither a nor b 
A)  carboxylic esters 
B)  ketones 
C)  both a and b 
D)  neither a nor b

Question 7

The chemical formula of acetylene is C2H2. How many valence electrons are associated with a molecule of acetylene?

Accepted Answer

A)  4 
B)  5 
C)  8 
D)  10 
A)  4 
B)  5 
C)  8 
D)  10

Question 8

In which of the following classes of organic compounds is an oxygen atom bonded to a hydrogen atom?

Accepted Answer

A)  alcohols 
B)  aldehydes 
C)  amines 
D)  all of these 
A)  alcohols 
B)  aldehydes 
C)  amines 
D)  all of these

Question 9

If the bond angles at a carbon atom are 109.5°, how many groups are distributed around the carbon atom?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 10

If the bond angles at a carbon atom are 120°, how many groups are distributed around the carbon atom?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 11

Amino acids are molecules which contain both an amino group and a carboxyl group. Which atomic species must be present in all amino acids?

Accepted Answer

A)  C and H 
B)  C, H, and N 
C)  C, H, and O 
D)  C, H, N, and O 
A)  C and H 
B)  C, H, and N 
C)  C, H, and O 
D)  C, H, N, and O

Question 12

Examine the following structure. Atoms other than carbon and hydrogen are labeled with the symbol of the element.  
-What are the bond angles around the carbon atom bonded to the oxygen atom?

Accepted Answer

A)  109.5° 
B)  120° 
C)  180° 
D)  90° 
A)  109.5° 
B)  120° 
C)  180° 
D)  90°

Question 13

A chemist has two pure samples of an organic compound, one of which she obtained from a natural source, and one of which she synthesized in the lab. Which of the following properties can she use to determine which is the synthetic sample?

Accepted Answer

A)  boiling point 
B)  formula weight 
C)  solubility 
D)  none of these 
A)  boiling point 
B)  formula weight 
C)  solubility 
D)  none of these

Question 14

In which of the following classes of organic compounds is an oxygen atom bonded to a hydrogen atom?

Accepted Answer

A)  aldehydes 
B)  carboxylic acids 
C)  ketones 
D)  all of these 
A)  aldehydes 
B)  carboxylic acids 
C)  ketones 
D)  all of these

Question 15

How many carboxylic esters have the molecular formula C3H6O2?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 16

How many amines have the molecular formula C3H9N?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 17

Which of the following is an example of a tertiary amine?

Accepted Answer

A)  CH3NH2 
B)  CH3CH2NH2 
C)  CH3CH2CH2NH2 
D)  none of these 
A)  CH3NH2 
B)  CH3CH2NH2 
C)  CH3CH2CH2NH2 
D)  none of these

Question 18

Which of the following is an example of a secondary alcohol?

Accepted Answer

A)  CH3OH 
B)    
C)  CH3CH2OH 
D)  none of these 
A)  CH3OH 
B)    
C)  CH3CH2OH 
D)  none of these

Question 19

Examine the following models. Atoms other than carbon and hydrogen are labeled with the symbol of the element.         A B C D
-Which model represents an ester?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  None of these is an ester.. 
A)  A 
B)  B 
C)  C 
D)  D 
E)  None of these is an ester..

Question 20

Which of the following geometries is never associated with a carbon atom in an organic compound?

Accepted Answer

A)  linear 
B)  square planar 
C)  tetrahedral 
D)  trigonal planar 
A)  linear 
B)  square planar 
C)  tetrahedral 
D)  trigonal planar

Exam 10: Organic Chemistry

Which of the following is an example of a tertiary amine?

Examine the following models. Atoms other than carbon and hydrogen are labeled with the symbol of the element. A B C D -Which of the models could be represented by the following condensed formula? CH3COOCH3

Which of the following is an example of a secondary amine?

In organic compounds, which of the following elements normally forms two covalent bonds?

The chemical formula of methylamine is CH3NH2. How many unshared electron pairs are associated with a molecule of methylamine?

In which of the following classes of organic compounds must there be at least two oxygen atoms?

The chemical formula of acetylene is C2H2. How many valence electrons are associated with a molecule of acetylene?

In which of the following classes of organic compounds is an oxygen atom bonded to a hydrogen atom?

If the bond angles at a carbon atom are 109.5°, how many groups are distributed around the carbon atom?

If the bond angles at a carbon atom are 120°, how many groups are distributed around the carbon atom?

Amino acids are molecules which contain both an amino group and a carboxyl group. Which atomic species must be present in all amino acids?

Examine the following structure. Atoms other than carbon and hydrogen are labeled with the symbol of the element. -What are the bond angles around the carbon atom bonded to the oxygen atom?

A chemist has two pure samples of an organic compound, one of which she obtained from a natural source, and one of which she synthesized in the lab. Which of the following properties can she use to determine which is the synthetic sample?

In which of the following classes of organic compounds is an oxygen atom bonded to a hydrogen atom?

How many carboxylic esters have the molecular formula C3H6O2?

How many amines have the molecular formula C3H9N?

Which of the following is an example of a tertiary amine?

Which of the following is an example of a secondary alcohol?

Examine the following models. Atoms other than carbon and hydrogen are labeled with the symbol of the element. A B C D -Which model represents an ester?

Which of the following geometries is never associated with a carbon atom in an organic compound?

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Chirality: the Handedness of Molecules

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Examine the following models. Atoms other than carbon and hydrogen are labeled with the symbol of the element. A B C D -Which of the models could be represented by the following condensed formula? CH₃COOCH₃

The chemical formula of methylamine is CH₃NH₂. How many unshared electron pairs are associated with a molecule of methylamine?

The chemical formula of acetylene is C₂H₂. How many valence electrons are associated with a molecule of acetylene?

How many carboxylic esters have the molecular formula C₃H₆O₂?

How many amines have the molecular formula C₃H₉N?