Deck 11: Introduction to Organic Molecules and Functional Groups

Question 1

How many total H atoms are present in the structure shown below?

A)12 H atoms
B)18 H atoms
C)17 H atoms
D)19 H atoms

Answer 1

B

Question 2

The compound below is classified as what type of compound?

A)alkyne
B)alkane
C)alkene
D)aromatic hydrocarbon

Answer 2

C

Question 3

Which compound is an ether?

A)
B)
C)
D)

Answer 3

B

Question 4

Which formula represents an organic compound?

A)NaCl
B)BaSO₄
C)PH₃
D)C₄H₁₀

Question 5

Which compound is an aldehyde?

A)
B)
C)
D)

Question 6

Which element is not a common heteroatom in organic compounds?

A)N
B)Na
C)O
D)Cl
E)F

Question 7

Which of the following correctly depicts the three-dimensional shape around each carbon in the structure below?

A)
B)
C)
D)

Question 8

How many total H atoms are present in the structure shown below?

A)12 H atoms
B)18 H atoms
C)17 H atoms
D)19 H atoms

Question 9

Which represents a skeletal structure for a four carbon hydrocarbon?

A)CH₃CH₂CH₂CH₃
B)C₄H₁₀
C)
D)

Question 10

The compound below is classified as what type of compound?

A)alkyne
B)alkane
C)alkene
D)aromatic hydrocarbon

Question 11

Which compound is an alcohol?

A)
B)
C)
D)

Question 12

Which structure has all of the hydrogens and lone pairs correctly added to the compound shown below?

A)
B)
C)
D)

Question 13

How many H atoms are bonded to the labeled carbons in the structure below?

A)C1 has 2Hs and C2 has 2Hs
B)C1 has 1H and C2 has no Hs
C)C1 has 2Hs and C2 has 1H

Question 14

What is the most common multiple bond between carbon and a heteroatom?

A)a carbon-oxygen double bond (C=O)
B)a carbon-nitrogen double bond (C=N)
C)a carbon-nitrogen single bond (C-N)
D)a carbon-sulfur double bond (C=S)

Question 15

Which of the following correctly describes the bond angles indicated in the structure below?

A)Angle 1 = 109.5°, Angle 2 = 109.5°, and Angle 3 = 180°
B)Angle 1 = 120°, Angle 2 = 120°, and Angle 3 = 180°
C)Angle 1 = 120°, Angle 2 = 120°, and Angle 3 = ~109.5°

Question 16

The compound below is classified as what type of compound?

A)aldehyde
B)carboxylic acid
C)ether
D)ester
E)ketone

Question 17

Which represents a condensed structure for a four carbon hydrocarbon?

A)CH₃CH₂CH₂CH₃
B)C₄H₁₀
C)
D)

Question 18

What is the shape around each carbon atom in the structure shown below?

A)The shape around each carbon atom is tetrahedral.
B)The shape around each carbon atom is bent.
C)The shape around the left carbon atom is tetrahedral and bent around the right carbon atom.
D)The shape around the left carbon atom is trigonal planar and bent around the right carbon atom.
E)The shape around the left carbon atom is trigonal planar and linear around the right carbon atom.

Question 19

How many covalent bonds does carbon generally form in organic compounds?

A)2
B)3
C)4
D)8

Question 20

How many H atoms are bonded to the labeled carbons in the structure below?

A)C1 has 2Hs and C2 has 2Hs
B)C1 has 1H and C2 has no Hs
C)C1 has 2Hs and C2 has 1H
D)C1 has 1H and C2 has 1 H

Question 21

What are the bond angles in the structure shown below?

A)Angle 1 = 109.5°, Angle 2 = 109.5°, and Angle 3 = 109.5°
B)Angle 1 = 109.5°, Angle 2 = 120°, and Angle 3 = 120°
C)Angle 1 = 109.5°, Angle 2 = 90°, and Angle 3 = ~109.5°
D)Angle 1 = 109.5°, Angle 2 = ~109.5°, and Angle 3 = 120°

Question 22

How many lone pairs of electrons are present but not shown in the molecule below?

A)0
B)1
C)2
D)3
E)4

Question 23

Which compound is an amide?

A)
B)
C)
D)

Question 24

The functional group of which type of compound contains a carbonyl group?

A)amide
B)alcohol
C)ether
D)amine

Question 25

The functional group of which type of compound does not contain a carbonyl group?

A)aldehyde
B)carboxylic acid
C)ether
D)ester
E)ketone

Question 26

Which representation has the bond polarities properly shown?

A)
B)
C)
D)

Question 27

The compound below is classified as what type of compound?

A)ether
B)amine
C)amide
D)aldehyde

Question 28

Which structure is not possible?

A)
B)
C)
D)

Question 29

Based on the functional group present, the compound below is classified as what type of compound?

A)aldehyde
B)carboxylic acid
C)ether
D)ester
E)ketone

Question 30

Which formula represents an inorganic compound?

A)CH₃CO₂CH₂CH₃
B)CH₃NHCH₂CH₃
C)ClCCCl
D)CaCl₂

Question 31

Which compound is an amide?

A)
B)
C)
D)

Question 32

The compound whose condensed structure is (CH₃)₃CCH₂OH can be represented as a skeletal structure as which of the following?

A)
B)
C)
D)

Question 33

How many covalent bonds does nitrogen typically form in organic compounds?

A)1
B)3
C)5
D)8

Question 34

Which structure is not possible?

A)
B)
C)
D)

Question 35

What is the shape about the O atoms in the environmental toxin dioxin, shown below?

A)tetrahedral
B)bent
C)trigonal planar
D)trigonal pyramidal
E)linear

Question 36

How many lone pairs of electrons are present but not shown in the molecule below?

A)0
B)1
C)2
D)3
E)4

Question 37

What is the condensed formula for the molecule shown below?

A)
B)(CH₃)₄C
C)(CH₃)₂(CH₂)₂CH₃
D)CH₃CCH₃CH₃CH₃

Question 38

Which compound has the highest boiling point?

A)HOCH₂CH₂OH
B)CH₃NHCH₂CH₃
C)CH₃CO₂CH₂CH₃
D)NaCH₃COO

Question 39

Which molecule is a polar molecule?

A)
B)
C)
D)
E)More than one of the molecules above is a polar molecule.

Question 40

Which compound is most flammable?

A)HOCH₂CH₂OH
B)NaCl
C)CO₂
D)HCl

Question 41

The molecule below is an example of a ketone.

Question 42

Which compounds would be expected to have similar chemical reactivity?

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

Question 43

The compound represented by the skeletal structure below contains eleven (11)H atoms and two lone pairs of electrons that are not shown.

Question 44

The compound below is a nonpolar molecule.

Question 45

Vitamin C is a water-soluble vitamin.

Question 46

Which functional group is NOT present in the molecule below?

A)carbonyl group
B)amino group
C)benzene ring
D)All of the functional groups mentioned above appear in this molecule.

Question 47

All molecules with polar bonds are polar molecules.

Question 48

Cholesterol is soluble in the nonpolar solvent gasoline.

Question 49

The two structures shown below represent the same compound.
CH₃CH₂CH₂CH₂CO₂CH₃

Question 50

Polar organic compounds are water soluble only if they are small and contain a nitrogen or oxygen atom that can hydrogen bond with water.

Question 51

Which bonding pattern is NOT typical of carbon atoms in organic compounds?

A)
B)
C)
D)

Question 52

MTBE is soluble in both gasoline and in water.

Question 53

Vitamin C is a water-soluble vitamin.

Question 54

Which structure properly indicates the order of attachment of atoms as represented by the condensed structure CH₃CHBrCH₂CH(CH₃)₂?

A)
B)
C)
D)

Question 55

Three of the four structures below represent unstable organic compounds that are not likely to exist because they violate the octet rule. Which one of the four structures represents a stable organic compound that is likely to exist?

A)
B)
C)
D)

Question 56

Hydrocarbons are nonpolar molecules.

Question 57

Which compounds would be expected to have similar chemical reactivity?

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

Question 58

Three of the four structures below represent unstable organic compounds that are not likely to exist because they violate the octet rule. Which one of the four structures represents a stable organic compound that is likely to exist?

A)
B)
C)
D)

Question 59

The compound whose skeletal structure is shown below is used medicinally to treat fibromyalgia pain. Which statement is NOT a valid interpretation of its skeletal structure?

A)The compound contains 8 carbon atoms.
B)The compound contains 17 hydrogen atoms.
C)The compound contains 3 heteroatoms.
D)The compound contains 12 C-H bonds.

Question 60

The two structures shown below represent the same compound.

Question 61

Alkanes have only C-C single bonds and no functional group.

Question 62

The compound below contains no polar bonds.

Question 63

In the molecule below, the shape around the carbon atom is tetrahedral and the shape around the nitrogen atom is trigonal planar.

Question 64

In order to complete the structure shown below, six H atoms and four lone pairs need to be added.

Question 65

The molecule below is an example of an aromatic compound.

Question 66

The compound below is a polar molecule.

Question 67

The molecule below is an example of an aromatic compound.

Question 68

Alkanes, which have no functional groups, and therefore no reactive sites, are notoriously unreactive except under very drastic conditions.

Question 69

VSEPR theory is based on the concept that the most stable arrangement of atoms in a molecule keeps the atoms and lone pair electrons as far away from each other as possible.

Question 70

The molecule below contains alkyne and carbonyl functional groups.

Question 71

The abbreviation "R" in a chemical formula represents a hydrocarbon portion of the molecule.

Question 72

The molecule with the condensed formula (CH₃)₂CHCH₂CHO can be represented as the skeletal structure below.

Question 73

CH₂F₂ is a nonpolar molecule.

Question 74

The condensed structure and skeletal structure shown below represent the same compound.

Question 75

The compound below is expected to be soluble in water.

Question 76

The two structures shown below represent the same compound.

Question 77

A functional group is an atom or a group of atoms with characteristic chemical and physical properties.

Question 78

In order to complete the structure of the environmental toxin dioxin shown below, four H atoms and two lone pairs need to be added.

Question 79

The shape around the oxygen atom in the molecule below is linear.

Question 80

The polarity in CH₂=CHF can be represented as indicated below.