Question 1

Which is not a property of most alkanes?

Accepted Answer

A) soluble in water 
B) light odor 
C) colorless 
D) burn readily in an open flame 
E) They are all properties of alkanes. 
A) soluble in water 
B) light odor 
C) colorless 
D) burn readily in an open flame 
E) They are all properties of alkanes.

Question 2

Which of the following properties is not characteristic of alkanes?

Accepted Answer

A) Their melting points increase with molecular weight. 
B) They are generally less dense than water. 
C) They are tasteless and colorless. 
D) They are nontoxic. 
E) They form strong hydrogen bonds. 
A) Their melting points increase with molecular weight. 
B) They are generally less dense than water. 
C) They are tasteless and colorless. 
D) They are nontoxic. 
E) They form strong hydrogen bonds.

Question 3

All of the choices listed are representations of the same molecule except

Accepted Answer

A)  C5H12 
B) CH3CH2CH2CH2CH3 
C) 
 
. 
D) 
 
. 
E) (CH3)2CHCH2CH3
. 
A)  C5H12 
B) CH3CH2CH2CH2CH3 
C) 
 
. 
D) 
 
. 
E) (CH3)2CHCH2CH3
.

Question 4

The functional group illustrated below is an

Accepted Answer

A) alcohol. 
B) amide. 
C) ether. 
D) ester. 
E) amine. 
A) alcohol. 
B) amide. 
C) ether. 
D) ester. 
E) amine.

Question 5

The alcohol functional group has

Accepted Answer

A) a carbon-carbon triple bond. 
B) a carbon-oxygen-hydrogen group. 
C) a six-membered ring with three double bonds. 
D) a double bond between carbon and oxygen. 
E) one or more bonds between carbon and nitrogen. 
A) a carbon-carbon triple bond. 
B) a carbon-oxygen-hydrogen group. 
C) a six-membered ring with three double bonds. 
D) a double bond between carbon and oxygen. 
E) one or more bonds between carbon and nitrogen.

Question 6

Monochlorination of pentane,C5H12,leads to formation of how many different products?

Accepted Answer

A) 3 
B) 2 
C) 1 
D) 4 
E) 5 
A) 3 
B) 2 
C) 1 
D) 4 
E) 5

Question 7

In straight-chain alkanes,the carbon atoms on each end of the molecule always form bonds with ________ atoms of hydrogen;the carbons within the molecule always form bonds with ________ hydrogen atoms.

Accepted Answer

A) 4;4 
B) 4;2 
C) 3;3 
D) 3;2 
E) 2;2 
A) 4;4 
B) 4;2 
C) 3;3 
D) 3;2 
E) 2;2

Question 8

Identify each pair of compounds as the same molecule,isomers or different molecules.
A)
   
B)
   
C)

Accepted Answer

A) same molecule,different con

Question 9

The carbon skeleton of an alkane is shown below.How many hydrogen atoms are bonded to the carbon marked with a *?

Accepted Answer

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

Question 10

When hydrocarbons undergo incomplete combustion,the product(s)is(are)

Accepted Answer

A) CO2 and O2. 
B) CO,H2O and soot. 
C) CO2 and H2O. 
D) H2O and O2. 
E) H2O. 
A) CO2 and O2. 
B) CO,H2O and soot. 
C) CO2 and H2O. 
D) H2O and O2. 
E) H2O.

Question 11

How many hydrogen atoms are present in the molecule shown?

Accepted Answer

A) 6 
B) 18 
C) 14 
D) 16 
E) 12 
A) 6 
B) 18 
C) 14 
D) 16 
E) 12

Question 12

A correct name for the following compound is

Accepted Answer

A) 1-bromo-3-ethyl-1-methylcyclopropane. 
B) 1-bromo-2-ethyl-1-methylcyclopropane. 
C) 1-bromo-1-ethyl-2-methylcyclopropane. 
D) 2-bromo-1-ethyl-2-methylcyclopropane. 
E) 1-bromo-3-ethyl-3-methylcyclopropane. 
A) 1-bromo-3-ethyl-1-methylcyclopropane. 
B) 1-bromo-2-ethyl-1-methylcyclopropane. 
C) 1-bromo-1-ethyl-2-methylcyclopropane. 
D) 2-bromo-1-ethyl-2-methylcyclopropane. 
E) 1-bromo-3-ethyl-3-methylcyclopropane.

Question 13

Match the name of the functional group with the molecule that correctly illustrates it.
-ketone

Accepted Answer

A)   
B)   
C)   
D)   
E) C  C  -O-C   C  
F) 
G) 
H) 
I) 
J)C   
C   
Br 
A)   
B)   
C)   
D)   
E) C  C  -O-C   C  
F) 
G) 
H) 
I) 
J)C   
C   
Br

Question 14

The functional group which illustrates an ester is

Accepted Answer

A) R-C≡C-R'. 
B) R-C-N  
. 
C) 
 
. 
D) 
 
. 
E) 
 
. 
A) R-C≡C-R'. 
B) R-C-N  
. 
C) 
 
. 
D) 
 
. 
E) 
 
.

Question 15

The alkyne functional group has

Accepted Answer

A) a carbon-carbon triple bond. 
B) a carbon-oxygen-hydrogen group. 
C) a six-membered ring with three double bonds. 
D) a double bond between carbon and oxygen. 
E) one or more bonds between carbon and nitrogen. 
A) a carbon-carbon triple bond. 
B) a carbon-oxygen-hydrogen group. 
C) a six-membered ring with three double bonds. 
D) a double bond between carbon and oxygen. 
E) one or more bonds between carbon and nitrogen.

Question 16

Match the name of the functional group with the molecule that correctly illustrates it.
-alcohol

Accepted Answer

A)   
B)   
C)   
D)   
E) C  C  -O-C   C  
F) 
G) 
H) 
I) 
J)C   
C   
Br 
A)   
B)   
C)   
D)   
E) C  C  -O-C   C  
F) 
G) 
H) 
I) 
J)C   
C   
Br

Question 17

Write a line bond drawing for the following compounds:
A)1-chloro-2-isopropylcyclopentane
B) 1-ethyl-3-methylcyclohexane

Accepted Answer

The answer of Write a line bond drawing for the...

Question 18

The carbon skeleton of an alkane is shown below.How many hydrogen atoms are bonded to the carbon marked with a *?

Accepted Answer

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

Question 19

How many hydrogens are present in a molecule composed of a six membered ring of carbon atoms and no double or triple bonds?

Accepted Answer

A) 12 
B) 10 
C) 14 
D) 16 
E) 24 
A) 12 
B) 10 
C) 14 
D) 16 
E) 24

Question 20

Which family of organic molecules is a hydrocarbon?

Accepted Answer

A) alcohol 
B) aldehyde 
C) amide 
D) amine 
E) aromatic 
A) alcohol 
B) aldehyde 
C) amide 
D) amine 
E) aromatic

Exam 12: Introduction to Organic Chemistry: Alkanes

Which is not a property of most alkanes?

Which of the following properties is not characteristic of alkanes?

All of the choices listed are representations of the same molecule except

The functional group illustrated below is an

The alcohol functional group has

Monochlorination of pentane,C5H12,leads to formation of how many different products?

In straight-chain alkanes,the carbon atoms on each end of the molecule always form bonds with ________ atoms of hydrogen;the carbons within the molecule always form bonds with ________ hydrogen atoms.

Identify each pair of compounds as the same molecule,isomers or different molecules. A) B) C)

The carbon skeleton of an alkane is shown below.How many hydrogen atoms are bonded to the carbon marked with a *?

When hydrocarbons undergo incomplete combustion,the product(s)is(are)

How many hydrogen atoms are present in the molecule shown?

A correct name for the following compound is

Match the name of the functional group with the molecule that correctly illustrates it. -ketone

The functional group which illustrates an ester is

The alkyne functional group has

Match the name of the functional group with the molecule that correctly illustrates it. -alcohol

Write a line bond drawing for the following compounds: A)1-chloro-2-isopropylcyclopentane B) 1-ethyl-3-methylcyclohexane

The carbon skeleton of an alkane is shown below.How many hydrogen atoms are bonded to the carbon marked with a *?

How many hydrogens are present in a molecule composed of a six membered ring of carbon atoms and no double or triple bonds?

Which family of organic molecules is a hydrocarbon?

Matter and Measurements

Atoms and the Periodic Table

Ionic Compounds

Molecular Compounds

Classification and Balancing of Chemical Reactions

Chemical Reactions: Mole and Mass Relationships

Chemical Reactions: Energy, rates, and Equilibrium

Gases, liquids, and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Alkenes, alkynes, and Aromatic Compounds

Some Compounds With Oxygen, sulfur, or a Halogen

Aldehydes and Ketones

Amines

Carboxylic Acids and Their Derivatives

Amino Acids and Proteins

Enzymes and Vitamins

Carbohydrates

The Generation of Biochemical Energy

Carbohydrate Metabolism

Lipids

Lipid Metabolism

Protein and Amino Acid Metabolism

Nucleic Acids and Protein Synthesis

Genomics

Chemical Messengers: Hormones, neurotransmitters, and Drugs

Body Fluids

Filters

Monochlorination of pentane,C₅H₁₂,leads to formation of how many different products?

In straight-chain alkanes,the carbon atoms on each end of the molecule always form bonds with atoms of hydrogen;the carbons within the molecule always form bonds with hydrogen atoms.