Deck 3: Introduction to Organic Molecules and Functional Groups

Question 1

Why do heteroatoms confer reactivity on a particular molecule?

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.

Answer 1

Because they have lone pairs and create electron-deficient sites on carbon.

Question 2

Which of the following correctly matches the molecules to the names of the functional group? I. CH₃OCH₃ Ether
II) CH₃CONH₂ Amine
III)CH₃SH Thiol
IV)CH₃CHO Alcohol

A)I and II
B)II and III
C)III and IV
D)I and III

Answer 2

I and III

Question 3

Which of the following molecules are aliphatic hydrocarbons?

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

Answer 3

I and III

Question 4

Which of the following structures contains a primary amine?

A)I
B)II
C)III
D)IV

Question 5

Which of the following molecules contain the same functional groups?

A)I,II,IV
B)I,II,III
C)II,III,IV
D)I,III,IV

Question 6

Why do π bonds confer reactivity on a particular molecule?

A)Because π bonds are difficult to break in chemical reactions.
B)Because π bonds make a molecule an acid.
C)Because π bonds are easily broken in chemical reactions.
D)Because π bonds make a molecule an electrophile.

Question 7

Which of the following structures contains an amide?

A)I
B)II
C)III
D)IV

Question 8

Which of the following correctly matches the molecules to the names of the functional group? I. CH₃NH₂ Amide
II) CH₃SCH₃ Sulfide
III)CH₃CONH₂ Amine
IV)CH₃CO₂CH₃ Ester

A)I and II
B)II and IV
C)III and IV
D)II and III

Question 9

Which of the following structures contains an alkene?

A)I
B)II
C)III
D)IV

Question 10

Consider the molecule donepezil (used to treat Alzheimer's disease).Which of the following lists the correct functional groups present in donepezil?

A)Amide,aromatic,ether,ketone
B)Amide,aromatic,ester,ketone
C)Amine,aromatic,ester,ketone
D)Amine,aromatic,ether,ketone

Question 11

Which of the following lists contains common heteroatoms found in organic molecules?

A)N,O,S,P,Cl
B)Na,O,S,P,Cl
C)Na,Mg,S,N,Cl
D)Na,Mg,O,N,Cl

Question 12

Which of the following molecules are aromatic hydrocarbons?

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

Question 13

Which of the following statements best describes the relationship between the surface area of a molecule and the strength of the intermolecular forces?

A)The larger the surface area,the weaker the intermolecular forces.
B)The larger the surface area,the stronger the intermolecular forces.
C)The smaller the surface area,the stronger the intermolecular forces.
D)There is no relationship between surface area and intermolecular forces.

Question 14

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

A)I < II < III
B)II < I < III
C)I < III < II
D)II < III < I

Question 15

Which of the following is a tertiary amine?

A)I
B)II
C)III
D)IV

Question 16

Consider the molecule atenolol (a β blocker used to treat hypertension).Which of the following lists the correct functional groups present in atenolol?

A)Primary alcohol,amide,primary amine,aromatic,ether
B)Secondary alcohol,amide,secondary amine,aromatic,ether
C)Secondary alcohol,amide,primary amine,aromatic,ether
D)Secondary alcohol,amide,secondary amine,aromatic,ester

Question 17

Which of the following structures contains a secondary amine?

A)I
B)II
C)III
D)IV

Question 18

Which of the following molecules contain the same functional groups?

A)I,II,III
B)I,II,IV
C)II,III,IV
D)I,III,IV

Question 19

Which of the following correctly matches the molecules to the names of the functional group? I. CH₃OH Carboxylic acid
II) CH₃CO₂CH₃ Ester
III) CH₃COCH₃ Ketone
IV) H₂CO Alcohol

A)I and II
B)III and IV
C)II and III
D)II and IV

Question 20

Which of the following is a secondary alcohol?

A)I
B)II
C)III
D)IV

Question 21

Which of the following compounds can form intermolecular hydrogen bonds with a molecule similar to itself?

A)I
B)II
C)III
D)IV

Question 22

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

A)I
B)II
C)III
D)IV

Question 23

Rank the following compounds in order of increasing melting point,putting the compound with the least melting point first.

A)II < I < III
B)I < III < II
C)I < II < III
D)III < II < I

Question 24

Which of the following compounds has the highest boiling point?

A)I
B)II
C)III
D)IV

Question 25

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

A)I > II > III > IV
B)III > IV > II > I
C)III > II > IV > I
D)I > IV > II > III

Question 26

Which of the following compounds has the highest boiling point?

A)I
B)II
C)III
D)IV

Question 27

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

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.

Question 28

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

A)I
B)II
C)III
D)IV

Question 29

Which of the following compounds has the lowest boiling point?

A)I
B)II
C)III
D)IV

Question 30

What is the strongest intermolecular force present in 1-propanol?

A)Ion-ion
B)Hydrogen bonding
C)Dipole-dipole
D)Induced dipole-induced dipole

Question 31

What intermolecular force is generally considered the strongest?

A)Hydrogen bonding
B)London dispersion forces
C)Covalent bonds
D)Dipole-dipole

Question 32

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

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.

Question 33

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

A)I
B)II
C)III
D)IV

Question 34

Which of the following compounds has the highest boiling point?

A)I
B)II
C)III
D)IV

Question 35

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

A)London dispersion forces
B)Ion-ion
C)Hydrogen bonding
D)Dipole-dipole

Question 36

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

A)I
B)II
C)III
D)IV

Question 37

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

A)I > II > III
B)II > III > I
C)III > II > I
D)III > I > II

Question 38

Which of the following compounds has the highest boiling point?

A)I
B)II
C)III
D)IV

Question 39

What intermolecular force is generally considered the weakest?

A)Hydrogen bonding
B)London dispersion forces
C)Dipole-dipole
D)Ion-ion

Question 40

Which of the following compounds would be expected to be more soluble in hexane (C₆H₁₄)?

A)I
B)II
C)III
D)IV

Question 41

List the intermolecular forces present in the following molecule:

A)Van der Waals
B)Dipole-dipole interactions
C)Hydrogen bonding
D)More than one of these answer choices is correct.

Question 42

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

A)I > III > IV > II
B)IV > II > I > III
C)IV > I > III > II
D)I > IV > II > III

Question 43

Which of the following molecules can bond hydrogen to another molecule of itself?

A)I
B)II
C)III
D)IV

Question 44

List the intermolecular forces present in the following molecule:

A)Van der Waals
B)Dipole-dipole interactions
C)Hydrogen bonding
D)More than one of these answer choices is correct.

Question 45

The indicated bond is:

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

Question 46

Which of the following could most likely serve as an ionophore?

A)I
B)II
C)III
D)IV

Question 47

List the intermolecular forces present in the following molecule:

A)Van der Waals
B)Dipole-dipole interactions
C)Hydrogen bonding
D)More than one of these answer choices is correct.

Question 48

Which C=O functional group is present in the following molecule?

A)Carboxylic acid
B)Ester
C)Ketone
D)Aldehyde

Question 49

Which C=O functional group is present in the following molecule?

A)Carboxylic Acid
B)Ester
C)Ketone
D)Aldehyde

Question 50

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

A)I > III > IV > II
B)IV > II > I > III
C)IV > I > II > III
D)I > IV > II > III

Question 51

Which of the following statements about vitamin C,drawn below,is true?

A)Vitamin C is insoluble in H₂O.
B)Vitamin C is soluble in H₂O.
C)Vitamin C is an aliphatic hydrocarbon.
D)Vitamin C contains a ketone functional group.

Question 52

The indicated bond is:

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.

Question 53

Which of the following statements about vitamin A,drawn below,is true?

A)Vitamin A is soluble in H₂O.
B)Vitamin A is insoluble in organic solvents.
C)Vitamin A contains an aromatic ring.
D)Vitamin A is insoluble in H₂O.

Question 54

Which C=O functional group is present in the following molecule?

A)Carboxylic acid
B)Ester
C)Ketone
D)Aldehyde

Question 55

The indicated carbon atom is:

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

Question 56

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

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