Question 1

What intermolecular force is generally considered the strongest?

Accepted Answer

A)  Hydrogen bonding
B)  London dispersion forces
C)  Covalent bonds
D)  Dipole-dipoleE) B) and D)
F) A) and B)

Question 2

Which of the following intermolecular forces would not form between similar molecules of the structure below?

Accepted Answer

A)  London dispersion forces
B)  Ion-ion
C)  Hydrogen bonding
D)  Dipole-dipoleE) A) and B)
F) None of the above

Question 3

Which of the following compounds is expected to be the least soluble in H2O?
2O?   A) I B) II C) III D) IV" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

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

Question 4

Which of the following statements about the solubility of organic compounds in H2O is true?

Accepted Answer

A)  The non-polar part of a molecule that is not attracted to water is said to be hydrophilic.
B)  The non-polar part of a molecule that is not attracted to water is said to be hydrophobic.
C)  The polar part of a molecule that can that can bond hydrogen to water is said to be hydrophobic.
D)  For an organic compound with one functional group that contains an O or N atom, the compound is water soluble only if it has 35 carbons.E) B) and D)
F) A) and D)

Question 5

Rank the following compounds in order of increasing strength of intermolecular forces.  III > IV > II B) IV > II > I > III C) IV > I > III > II D) I > IV > II > III" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  I > III > IV > II
B)  IV > II > I > III
C)  IV > I > III > II
D)  I > IV > II > IIIE) All of the above
F) B) and D)

Question 6

Which of the following structures contains an amide?

Accepted Answer

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

Question 7

Which of the following compounds has the highest boiling point?

Accepted Answer

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

Question 8

Which of the following structures contains a primary amine?

Accepted Answer

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

Question 9

Which of the following compounds has the highest boiling point?

Accepted Answer

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

Question 10

Why do heteroatoms confer reactivity on a particular molecule?

Accepted Answer

A)  Because they have lone pairs and create electron-rich sites on carbon.
B)  Because they have lone pairs and create electron-deficient sites on carbon.
C)  Because they are electronegative and act as electrophiles.
D)  Because they are electropositive and act as nucleophiles.E) All of the above
F) A) and D)

Question 11

The indicated bond is:

Accepted Answer

A)  Nucleophilic because it is electron-deficient.
B)  Electrophilic because it is electron-deficient.
C)  Nucleophilic because it electron-rich.
D)  Electrophilic because it is electron-rich.E) B) and C)
F) A) and D)

Question 12

Which of the following lists the correct functional groups found in aspartame, the artificial sweetener?

Accepted Answer

A)  Amine, aromatic, carboxylic acid, ether, ketone.
B)  Amine, amide, aromatic, carboxylic acid, ester.
C)  Amide, alcohol, aromatic, carboxylic acid, ether.
D)  Amine, aromatic, carboxylic acid, ester, nitrile.E) All of the above
F) B) and D)

Question 13

Rank the following compounds in order of increasing strength of intermolecular forces, putting the molecule with the weakest intermolecular force first.

Accepted Answer

A)  I 
B)  II 
C)  I 
D)  II < III < IE) A) and C)
F) A) and B)

Question 14

Which of the following molecules contain the same functional groups?

Accepted Answer

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

Question 15

What molecular features are required for soap to properly dissolve grease and oil?

Accepted Answer

A)  The molecule must be large.
B)  The molecule must contain a polar head.
C)  The molecule must contain a non-polar tail.
D)  The molecule must contain both a polar head and a non-polar tail.E) A) and D)
F) A) and B)

Question 16

Which of the following molecules are aromatic hydrocarbons?

Accepted Answer

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

Question 17

Which of the following alkanes is expected to have the highest melting point?

Accepted Answer

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

Question 18

Which of the following compounds is expected to be H2O soluble?
2O soluble?   A) I B) II C) III D) IV" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

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

Question 19

Rank the following compounds in order of decreasing melting point, putting the compound with the highest melting point first.  II > III B) II > III > I C) III > II > I D) III > I > II" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

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

Question 20

Which of the following is a secondary alcohol?

Accepted Answer

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

Exam 3: Introduction to Organic Molecules and Functional Groups

Rank the following compounds in order of increasing strength of intermolecular forces, putting the molecule with the weakest intermolecular force first.

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Which of the following structures contains a primary amine?

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Which of the following structures contains an amide?

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Why do heteroatoms confer reactivity on a particular molecule?

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What molecular features are required for soap to properly dissolve grease and oil?

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Which of the following intermolecular forces would not form between similar molecules of the structure below?

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Which of the following alkanes is expected to have the highest melting point?

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Which of the following compounds is expected to be H2O soluble?

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Which of the following compounds has the highest boiling point?

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What intermolecular force is generally considered the strongest?

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Rank the following compounds in order of increasing strength of intermolecular forces.

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Which of the following compounds is expected to be the least soluble in H2O?

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The indicated bond is:

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Rank the following compounds in order of decreasing melting point, putting the compound with the highest melting point first.

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Which of the following molecules are aromatic hydrocarbons?

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Which of the following statements about the solubility of organic compounds in H2O is true?

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Which of the following lists the correct functional groups found in aspartame, the artificial sweetener?

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Which of the following compounds has the highest boiling point?

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Which of the following molecules contain the same functional groups?

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Which of the following is a secondary alcohol?

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Which of the following compounds is expected to be H₂O soluble?

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Which of the following compounds is expected to be the least soluble in H₂O?

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Which of the following statements about the solubility of organic compounds in H₂O is true?

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