Deck 3: Introduction to Organic Molecules and Functional Groups

Question 1

Which of the following is a tertiary amine?

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

Answer 1

II

Question 2

Which of the following molecules are aromatic hydrocarbons?

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

Answer 2

I and III

Question 3

Which of the following structures contains an amide?

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

Answer 3

IV

Question 4

Which of the following structures contains an alkene?

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

Question 5

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 6

Which of the following molecules are aliphatic hydrocarbons? $$\begin{array} { c c c c } \mathrm { CH } _ { 3 } \mathrm { CH } _ { 3 } & \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { OH } & \mathrm { CH } _ { 2 } = \mathrm { CH } _ { 2 } & \mathrm { CH } _ { 3 } \mathrm { OCH } _ { 3 } \\\text { I } & \text { II } & \text { III } & \text { IV }\end{array}$$

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

Question 7

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 8

Which of the following is a secondary alcohol?

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

Question 9

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 10

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.

Question 11

Which of the following correctly matches the molecules to the names of the functional groups? 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 12

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 force.
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 13

Which of the following structures contains a secondary amine?

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

Question 14

Consider the molecule atenolol (a  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 15

Which of the following molecules contain the same functional groups? $$\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { OH } \quad \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { OCH } _ { 2 } \mathrm { CH } _ { 3 } \quad \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { OH } \quad \mathrm { CH } _ { 3 } \mathrm { CH } ( \mathrm { OH } ) \mathrm { CH } _ { 3 }$$
$$\mathrm { I }\quad\quad\quad\quad\quad\quad\mathrm { II }\quad\quad\quad\quad\quad\quad\mathrm { III }\quad\quad\quad\quad\quad\quad\mathrm { IV }$$

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

Question 16

Which of the following correctly matches the molecules to the names of the functional groups? 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

Question 17

Why do  bonds confer reactivity on a particular molecule?

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

Question 18

Which of the following correctly matches the molecules to the names of the functional groups? 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 19

Which of the following structures contains a primary amine?

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

Question 20

Which of the following molecules contain the same functional groups? $$\mathrm { CH } _ { 3 } \mathrm { CH } \left( \mathrm { NH } _ { 2 } \right) \mathrm { CH } _ { 3 } \quad \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { NH } _ { 2 } \quad \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CONH } _ { 2 } \quad \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { NHCH } _ { 3 }$$
$$\mathrm { I }\quad\quad\quad\quad\quad\quad\mathrm { II }\quad\quad\quad\quad\quad\quad\mathrm { III }\quad\quad\quad\quad\quad\quad\mathrm { IV }$$

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

Question 21

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

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

Question 22

Which of the following compounds has the lowest boiling point?

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

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) B and C are required.

Question 25

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 26

Which of the following compounds has the highest boiling point?

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

Question 27

What intermolecular force is generally considered the strongest?

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

Question 28

Which of the following compounds has the highest boiling point?

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

Question 29

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 30

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

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

Question 31

Which of the following compounds has the highest boiling point?

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

Question 32

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

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

Question 33

Which of the following compounds has the highest boiling point?

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

Question 34

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 hydrogen bond 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  5 carbons.

Question 35

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 36

What intermolecular force is generally considered the weakest?

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

Question 37

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 38

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

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

Question 39

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

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

Question 40

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 41

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 42

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 43

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 44

Which of the following list 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.

Question 45

Which of the following statements about vitamin A, drawn below, are 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 46

Which of the following statements about vitamin C, drawn below, are 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 47

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 48

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

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