Question 1

The condensed structure of 2,4-dimethylheptane is

Accepted Answer

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

Question 2

Explain the term "functional group." How do organic chemists use the functional group concept?

Accepted Answer

A functional group is a group of atoms within a larger molecule that gives the molecule specific physical and chemical properties.Organic chemists use functional groups as an organizational tool in classifying,naming,and predicting the properties of organic molecules.

Question 3

All of the following statements are general properties of organic compounds except

Accepted Answer

A) the bonds are covalent. 
B) they have relatively low boiling points. 
C) they have limited or no water solubility. 
D) they usually behave as electrolytes in solution. 
E) they have relatively low melting points. 
A) the bonds are covalent. 
B) they have relatively low boiling points. 
C) they have limited or no water solubility. 
D) they usually behave as electrolytes in solution. 
E) they have relatively low melting points. D

Question 4

Which molecule is not an isomer of the molecule shown?

Accepted Answer

A)   
B)  C4H9OH 
C) 
  
D) 
  
E) 
  
A)   
B)  C4H9OH 
C) 
  
D) 
  
E)

Question 5

Which of the following line structures are of the same compound?

Accepted Answer

A) I and II 
B) I and III 
C) II and IV 
D) All of them are the same. 
A) I and II 
B) I and III 
C) II and IV 
D) All of them are the same.

Question 6

Which family of organic compounds does not contain any multiple bonds?

Accepted Answer

A) alkyl halides 
B) alkenes 
C) alkynes 
D) aldehydes 
E) ketones 
A) alkyl halides 
B) alkenes 
C) alkynes 
D) aldehydes 
E) ketones

Question 7

The condensed structure of n-octane is

Accepted Answer

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

Question 8

Which group is the best description of the properties of alkanes?

Accepted Answer

A) flammable,reactive,water soluble 
B) non-flammable,non-polar,water soluble 
C) flammable,non-reactive,insoluble in water 
D) non-flammable,polar,reactive 
E) none of the above 
A) flammable,reactive,water soluble 
B) non-flammable,non-polar,water soluble 
C) flammable,non-reactive,insoluble in water 
D) non-flammable,polar,reactive 
E) none of the above

Question 9

How many carbon atoms are there in the longest continuous chain of the molecule shown?
(C  
 
C-(C  
 
-C

Accepted Answer

A) 8 
B) 6 
C) 4 
D) 3 
E) cannot be determined without additional information 
A) 8 
B) 6 
C) 4 
D) 3 
E) cannot be determined without additional information

Question 10

What functional groups are present in the following structure?

Accepted Answer

A) an alcohol and an alkene 
B) a ketone and an alkyne 
C) an aldehyde and a ketone 
D) a ketone and an alkene 
E) an ether and an alkane 
A) an alcohol and an alkene 
B) a ketone and an alkyne 
C) an aldehyde and a ketone 
D) a ketone and an alkene 
E) an ether and an alkane

Question 11

The molecule shown is named as a substituted ________ because ________.

Accepted Answer

A) decane;it contains 10 atoms of carbon 
B) hexane;it contains six atoms of carbon in its longest chain 
C) tetramethane;it contains four methyl groups as branches 
D) hexamethane;it contains six methyl groups altogether 
E) butane;four carbons are substituted onto the chain 
A) decane;it contains 10 atoms of carbon 
B) hexane;it contains six atoms of carbon in its longest chain 
C) tetramethane;it contains four methyl groups as branches 
D) hexamethane;it contains six methyl groups altogether 
E) butane;four carbons are substituted onto the chain

Question 12

What is the IUPAC name of the compound shown?

Accepted Answer

A) 4-propyldecane 
B) 4-isopropyldecane 
C) 3-hexyl-2-methylhexane 
D) 4-isobutyldecane 
E) 4-sec-butyldecane 
A) 4-propyldecane 
B) 4-isopropyldecane 
C) 3-hexyl-2-methylhexane 
D) 4-isobutyldecane 
E) 4-sec-butyldecane

Question 13

The name of the following structure will include the parent name

Accepted Answer

A) ethane. 
B) butane. 
C) hexane. 
D) octane. 
E) pentane. 
A) ethane. 
B) butane. 
C) hexane. 
D) octane. 
E) pentane.

Question 14

Which factor is most important in determining the chemistry of an organic molecule?

Accepted Answer

A) the number of carbon-carbon bonds 
B) the functional groups 
C) the number of carbon-hydrogen bonds 
D) the number of branches in the carbon chain 
E) the melting point 
A) the number of carbon-carbon bonds 
B) the functional groups 
C) the number of carbon-hydrogen bonds 
D) the number of branches in the carbon chain 
E) the melting point

Question 15

The various shapes taken on by an organic molecule are known as

Accepted Answer

A) conformations. 
B) constitutional isomers. 
C) preferential isomers. 
D) configurations. 
E) none of the above 
A) conformations. 
B) constitutional isomers. 
C) preferential isomers. 
D) configurations. 
E) none of the above

Question 16

In the molecule 3,3-dimethylhexane,carbon number two is

Accepted Answer

A) primary. 
B) secondary. 
C) tertiary. 
D) quaternary. 
E) none of the above 
A) primary. 
B) secondary. 
C) tertiary. 
D) quaternary. 
E) none of the above

Question 17

The family of organic compounds with functional groups that do not consist only of hydrocarbons is

Accepted Answer

A) aldehydes. 
B) alkanes. 
C) alkenes. 
D) alkynes. 
E) aromatics. 
A) aldehydes. 
B) alkanes. 
C) alkenes. 
D) alkynes. 
E) aromatics.

Question 18

What is the minimum number of carbons that must be present in a molecule to have a secondary carbon?

Accepted Answer

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

Question 19

Alkanes are ________ in water and ________ than water.

Accepted Answer

A) insoluble;less dense 
B) soluble;less dense 
C) insoluble,;more dense 
D) soluble;more dense 
A) insoluble;less dense 
B) soluble;less dense 
C) insoluble,;more dense 
D) soluble;more dense

Question 20

What functional groups are present in the following structure?

Accepted Answer

A) an alcohol and an alkyne 
B) a ketone and an alkyne 
C) an aldehyde and a ketone 
D) an alcohol and an alkene 
E) an ether and an alkyne 
A) an alcohol and an alkyne 
B) a ketone and an alkyne 
C) an aldehyde and a ketone 
D) an alcohol and an alkene 
E) an ether and an alkyne

Exam 12: Introduction to Organic Chemistry: Alkanes

The condensed structure of 2,4-dimethylheptane is

Explain the term "functional group." How do organic chemists use the functional group concept?

All of the following statements are general properties of organic compounds except

Which molecule is not an isomer of the molecule shown?

Which of the following line structures are of the same compound?

Which family of organic compounds does not contain any multiple bonds?

The condensed structure of n-octane is

Which group is the best description of the properties of alkanes?

How many carbon atoms are there in the longest continuous chain of the molecule shown? (C C-(C -C

What functional groups are present in the following structure?

The molecule shown is named as a substituted ________ because ________.

What is the IUPAC name of the compound shown?

The name of the following structure will include the parent name

Which factor is most important in determining the chemistry of an organic molecule?

The various shapes taken on by an organic molecule are known as

In the molecule 3,3-dimethylhexane,carbon number two is

The family of organic compounds with functional groups that do not consist only of hydrocarbons is

What is the minimum number of carbons that must be present in a molecule to have a secondary carbon?

Alkanes are ________ in water and ________ than water.

What functional groups are present in the following structure?

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

The molecule shown is named as a substituted because .

Alkanes are in water and than water.