Question 1

Which has resonance structures?

Accepted Answer

A)  CH4 
B)  CH3CH2COO− 
C)  CH3CH2CH3 
D)  CH3OH 
E)  CH3NH3+ 
A)  CH4 
B)  CH3CH2COO− 
C)  CH3CH2CH3 
D)  CH3OH 
E)  CH3NH3+ B

Question 2

Which has 12 hydrogen atoms?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)    D

Question 3

What is the classification of the carbon that has an arrow pointing at it in the structure drawn below?

Accepted Answer

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

Question 4

A Kekulé structure is similar to a Lewis structure except that, in a Kekulé structure,

Accepted Answer

A)  double bonds are omitted. 
B)  resonance structures are not depicted. 
C)  lone pairs are omitted. 
D)  carbon atoms are omitted. 
E)  wedges and lines are used to denote geometry. 
A)  double bonds are omitted. 
B)  resonance structures are not depicted. 
C)  lone pairs are omitted. 
D)  carbon atoms are omitted. 
E)  wedges and lines are used to denote geometry.

Question 5

What is the molecular formula for CH3CH2CH2CH(OH)CH2CH3?

Accepted Answer

A)  C4H9O 
B)  C6H13O 
C)  C5H13O 
D)  C6H14O 
E)  C6H12O 
A)  C4H9O 
B)  C6H13O 
C)  C5H13O 
D)  C6H14O 
E)  C6H12O

Question 6

The backbone of a strand of nucleic acid consists of

Accepted Answer

A)  phosphate units only. 
B)  phosphate and sugar units. 
C)  polyester. 
D)  phosphate, sugar, and nitrogen base units. 
E)  sugar units only. 
A)  phosphate units only. 
B)  phosphate and sugar units. 
C)  polyester. 
D)  phosphate, sugar, and nitrogen base units. 
E)  sugar units only.

Question 7

Name each of the following functional groups: 
a.  
b.  
c.  
d.  
e.  
f.

Accepted Answer

a. Alcohol
b. Ether

Question 8

Which one of these materials is a copolymer?

Accepted Answer

A)  Polystyrene-polybutadiene 
B)  Polyvinyl chloride 
C)  Polypropylene 
D)  Poly-cis-isoprene 
E)  Polyethylene 
A)  Polystyrene-polybutadiene 
B)  Polyvinyl chloride 
C)  Polypropylene 
D)  Poly-cis-isoprene 
E)  Polyethylene

Question 9

In which type of isomerism is there restricted rotation around a bond?

Accepted Answer

A)  Stereoisomers 
B)  Geometrical isomers 
C)  Constitutional isomers 
D)  Conformational isomers 
E)  Connectivity isomers 
A)  Stereoisomers 
B)  Geometrical isomers 
C)  Constitutional isomers 
D)  Conformational isomers 
E)  Connectivity isomers

Question 10

What is the molecular formula for the following compound?

Accepted Answer

A)  C16H32 
B)  C18H36 
C)  C18H38 
D)  C17H35 
E)  C18H37 
A)  C16H32 
B)  C18H36 
C)  C18H38 
D)  C17H35 
E)  C18H37

Question 11

Which of these pairs are geometrical isomers?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 12

In one sentence, what is the general requirement for a molecule to be optically active?

Accepted Answer

In order to be optic

Question 13

What is the classification of the carbon that has an arrow pointing at it in the structure drawn below?

Accepted Answer

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

Question 14

________ and ________ are two polysaccharides (polymers) of glucose with slightly different linkages (alpha and beta).

Accepted Answer

The answer of ________ and ________ are two polysaccharides (polymers)...

Question 15

The most abundant organic chemical on Earth is

Accepted Answer

A)  glycogen. 
B)  starch. 
C)  cellulose. 
D)  glucose. 
E)  carbonate. 
A)  glycogen. 
B)  starch. 
C)  cellulose. 
D)  glucose. 
E)  carbonate.

Question 16

Select the correct type for the following reaction.

Accepted Answer

A)  Dehydration 
B)  Halogenation 
C)  Addition 
D)  Elimination 
E)  Substitution 
A)  Dehydration 
B)  Halogenation 
C)  Addition 
D)  Elimination 
E)  Substitution

Question 17

The three molecular units found in nucleotides are ________, ________, and ________-________ ________.

Accepted Answer

phosphate,

Question 18

What is the identity of the functional group circled below?

Accepted Answer

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

Question 19

The two molecules represented below are examples of ________.

Accepted Answer

A)  geometrical isomers 
B)  structural isomers 
C)  optical isomers 
D)  stereoisomers 
E)  None of the choices is correct. 
A)  geometrical isomers 
B)  structural isomers 
C)  optical isomers 
D)  stereoisomers 
E)  None of the choices is correct.

Question 20

Which of the following is the product resulting from addition of HCl to CH3-CH=CH2?

Accepted Answer

A)  CH3Cl + CH2=CH2 
B)  CH3-CHCl=CH2 
C)  CH3-CH2-CH2Cl 
D)  CH3-CHCl-CH3 
E)  HCl does not add to alkanes. 
A)  CH3Cl + CH2=CH2 
B)  CH3-CHCl=CH2 
C)  CH3-CH2-CH2Cl 
D)  CH3-CHCl-CH3 
E)  HCl does not add to alkanes.

Exam 23: Metallurgy and the Chemistry of Metals

Which has resonance structures?

Which has 12 hydrogen atoms?

What is the classification of the carbon that has an arrow pointing at it in the structure drawn below?

A Kekulé structure is similar to a Lewis structure except that, in a Kekulé structure,

What is the molecular formula for CH3CH2CH2CH(OH)CH2CH3?

The backbone of a strand of nucleic acid consists of

Name each of the following functional groups: a. b. c. d. e. f.

Which one of these materials is a copolymer?

In which type of isomerism is there restricted rotation around a bond?

What is the molecular formula for the following compound?

Which of these pairs are geometrical isomers?

In one sentence, what is the general requirement for a molecule to be optically active?

What is the classification of the carbon that has an arrow pointing at it in the structure drawn below?

________ and ________ are two polysaccharides (polymers) of glucose with slightly different linkages (alpha and beta).

The most abundant organic chemical on Earth is

Select the correct type for the following reaction.

The three molecular units found in nucleotides are ________, ________, and ________-________ ________.

What is the identity of the functional group circled below?

The two molecules represented below are examples of ________.

Which of the following is the product resulting from addition of HCl to CH3-CH=CH2?

Chemistry: the Central Science

Atoms, Molecules, and Ions

Stoichiometry: Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Modern Materials

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy, Free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Environmental Chemistry

Coordination Chemistry

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

What is the molecular formula for CH₃CH₂CH₂CH(OH)CH₂CH₃?

and are two polysaccharides (polymers) of glucose with slightly different linkages (alpha and beta).

The three molecular units found in nucleotides are , , and - .

Which of the following is the product resulting from addition of HCl to CH₃-CH=CH₂?