Question 1

One reason for the very large number of organic compounds (compared to the total number of inorganic compounds) is

Accepted Answer

A)  functional groups. 
B)  structural isomerism. 
C)  hydrogen bonding. 
D)  the occurrence of organic compounds in living things. 
E)  the electronegativity of carbon. 
A)  functional groups. 
B)  structural isomerism. 
C)  hydrogen bonding. 
D)  the occurrence of organic compounds in living things. 
E)  the electronegativity of carbon.

Question 2

Organic compounds are always highly water soluble.

Accepted Answer

A) True 
 B)False

Question 3

According to the IUPAC convention for chemical naming, which part of a hydrocarbon is selected as the main chain for a hydrocarbon chain?

Accepted Answer

A)  the most highly branched chain 
B)  the shortest chain 
C)  the longest chain drawn in a straight line 
D)  the longest continuous chain, regardless of bends 
E)  the chain with the most substituted carbons in it 
A)  the most highly branched chain 
B)  the shortest chain 
C)  the longest chain drawn in a straight line 
D)  the longest continuous chain, regardless of bends 
E)  the chain with the most substituted carbons in it

Question 4

Mineral oil is a liquid hydrocarbon used as a laxative and lubricant in medical practice.

Accepted Answer

A) True 
 B)False

Question 5

What is the name of the continuous chain alkane with six carbon atoms?

Accepted Answer

A)  butane 
B)  pentane 
C)  hexane 
D)  heptane 
E)  octane 
A)  butane 
B)  pentane 
C)  hexane 
D)  heptane 
E)  octane

Question 6

As carbon bonds with atoms of increasingly higher electronegativities, the polarity of the bond

Accepted Answer

A)  decreases. 
B)  increases. 
C)  stays the same. 
D)  reverses. 
E)  becomes inverted. 
A)  decreases. 
B)  increases. 
C)  stays the same. 
D)  reverses. 
E)  becomes inverted.

Question 7

Carbon atoms always have how many covalent bonds?

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
E)  five 
A)  one 
B)  two 
C)  three 
D)  four 
E)  five

Question 8

The products of complete combustion are carbon dioxide and water.

Accepted Answer

A) True 
 B)False

Question 9

The functional group contained in the compound   is a(n)

Accepted Answer

A)  aldehyde. 
B)  alkene. 
C)  alcohol. 
D)  ketone. 
E)  ether. 
A)  aldehyde. 
B)  alkene. 
C)  alcohol. 
D)  ketone. 
E)  ether.

Question 10

In the equation for the combustion of pentane, the coefficient of carbon dioxide is

Accepted Answer

A)  one 
B)  two. 
C)  three. 
D)  four. 
E)  five. 
A)  one 
B)  two. 
C)  three. 
D)  four. 
E)  five.

Question 11

Amines contain carbon, hydrogen, and oxygen.

Accepted Answer

A) True 
 B)False

Question 12

The balanced equation for the complete combustion of C5H12 will give which of these product(s)?

Accepted Answer

A)  CO₂ only 
B)  C5H12O5 only 
C)  5CO₂ + 5H₂O 
D)  5CO₂ + 6H₂O 
E)  10CO + 12H₂O 
A)  CO₂ only 
B)  C5H12O5 only 
C)  5CO₂ + 5H₂O 
D)  5CO₂ + 6H₂O 
E)  10CO + 12H₂O

Question 13

The functional group contained in the compound CH3CH₂-O- CH3 is a(n)

Accepted Answer

A)  aldehyde. 
B)  alkene. 
C)  alcohol. 
D)  ketone. 
E)  ether. 
A)  aldehyde. 
B)  alkene. 
C)  alcohol. 
D)  ketone. 
E)  ether.

Question 14

Compounds that have the same molecular formula but different arrangements of atoms are called

Accepted Answer

A)  isomers. 
B)  isotopes. 
C)  indicators. 
D)  isozymes. 
E)  isometrics. 
A)  isomers. 
B)  isotopes. 
C)  indicators. 
D)  isozymes. 
E)  isometrics.

Question 15

What type of compound is CH3CH₂CH₂Cl?

Accepted Answer

A)  alkane 
B)  branched alkane 
C)  cycloalkane 
D)  haloalkane 
E)  isomer 
A)  alkane 
B)  branched alkane 
C)  cycloalkane 
D)  haloalkane 
E)  isomer

Question 16

What is the name of this compound?

Accepted Answer

A)  1,1-dichlorobutane 
B)  1,2,-dichlorobutane 
C)  1,3-dichlorobutane 
D)  1,4-dichlorobutane 
E)  dichlorobutane 
A)  1,1-dichlorobutane 
B)  1,2,-dichlorobutane 
C)  1,3-dichlorobutane 
D)  1,4-dichlorobutane 
E)  dichlorobutane

Question 17

What is the name for a five-carbon continuous-chain alkane?

Accepted Answer

A)  methane 
B)  ethane 
C)  propane 
D)  butane 
E)  pentane 
A)  methane 
B)  ethane 
C)  propane 
D)  butane 
E)  pentane

Exam 11: Introduction to Organic Chemistry: Alkanes

One reason for the very large number of organic compounds (compared to the total number of inorganic compounds) is

Organic compounds are always highly water soluble.

According to the IUPAC convention for chemical naming, which part of a hydrocarbon is selected as the main chain for a hydrocarbon chain?

Mineral oil is a liquid hydrocarbon used as a laxative and lubricant in medical practice.

What is the name of the continuous chain alkane with six carbon atoms?

As carbon bonds with atoms of increasingly higher electronegativities, the polarity of the bond

Carbon atoms always have how many covalent bonds?

The products of complete combustion are carbon dioxide and water.

The functional group contained in the compound is a(n)

In the equation for the combustion of pentane, the coefficient of carbon dioxide is

Amines contain carbon, hydrogen, and oxygen.

The balanced equation for the complete combustion of C5H12 will give which of these product(s)?

The functional group contained in the compound CH3CH₂-O- CH3 is a(n)

Compounds that have the same molecular formula but different arrangements of atoms are called

What type of compound is CH3CH₂CH₂Cl?

What is the name of this compound?

What is the name for a five-carbon continuous-chain alkane?

Chemistry and Measurements

Energy and Matter

Atoms and Elements

Nuclear Chemistry

Compounds and Their Bonds

Chemical Reactions and Quantities

Gases

Solutions

Reaction Rates and Chemical Equilibrium

Acids and Bases

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Phenols, Thiols, and Ethers

Aldehydes, Ketones, and Chiral Molecules

Carbohydrates

Carboxylic Acids and Esters

Lipids

Amines and Amides

Amino Acids and Proteins

Enzymes and Vitamins

Nucleic Acids and Protein Synthesis

Metabolic Pathways for Carbohydrates

Metabolism and Energy Production

Metabolic Pathways for Lipids and Amino Acids

Filters

The balanced equation for the complete combustion of C₅H₁₂ will give which of these product(s)?

The functional group contained in the compound CH₃CH₂-O- CH₃ is a(n)

What type of compound is CH₃CH₂CH₂Cl?