Question 1

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 2

What is the IUPAC name of the compound shown?

Accepted Answer

A) hexane 
B) isohexane 
C) ethylmethylpropane 
D) dimethylbutane 
E) 2,2-dimethylbutane 
A) hexane 
B) isohexane 
C) ethylmethylpropane 
D) dimethylbutane 
E) 2,2-dimethylbutane

Question 3

Match the name of the functional group with the molecule which correctly illustrates it.
-aldehyde

Accepted Answer

A) CH3CH2Br 
B)   
C)   
D)   
E)  
F) 
G) 
H)C  C   OC   C  
I) 
J)  
A) CH3CH2Br 
B)   
C)   
D)   
E)  
F) 
G) 
H)C  C   OC   C  
I) 
J)

Question 4

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 5

What is the IUPAC name of the compound shown?

Accepted Answer

A) 2-ethyl-3,5-dimethylhexane 
B) 3,5-dimethyl-2-ethylhexane 
C) 2,4,5-trimethylheptane 
D) 3,4,6-trimethylheptane 
E) 5-ethyl-2,4-dimethylhexane 
A) 2-ethyl-3,5-dimethylhexane 
B) 3,5-dimethyl-2-ethylhexane 
C) 2,4,5-trimethylheptane 
D) 3,4,6-trimethylheptane 
E) 5-ethyl-2,4-dimethylhexane

Question 6

The functional group illustrated by ROR' is an

Accepted Answer

A) alkyl. 
B) alcohol. 
C) ether. 
D) ester. 
E) aldehyde. 
A) alkyl. 
B) alcohol. 
C) ether. 
D) ester. 
E) aldehyde.

Question 7

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 8

The condensed structure of 2,4-dimethylhexane is ________.

Accepted Answer

A) 
  
B) CH3 CH3 CH2CH3CH2CH2CH2CH3 
C) 
  
D) 
  
E) 
  
A) 
  
B) CH3 CH3 CH2CH3CH2CH2CH2CH3 
C) 
  
D) 
  
E)

Question 9

Which of the following is a correct line structure for the following molecule?

Accepted Answer

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

Question 10

Which molecule is an isomer of the molecule shown?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E) CH3(CH2)4CH3 
A) 
  
B) 
  
C) 
  
D) 
  
E) CH3(CH2)4CH3

Question 11

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

Accepted Answer

A) C5H12 
B) CH3CH2CH2CH2CH3 
C) 
  
D) 
  
E) (C H3)2CH CH2CH3 
A) C5H12 
B) CH3CH2CH2CH2CH3 
C) 
  
D) 
  
E) (C H3)2CH CH2CH3

Question 12

All of the families below include functional groups which contain oxygen except

Accepted Answer

A) carboxylic acids. 
B) alkyl halides. 
C) esters. 
D) ethers. 
E) ketones. 
A) carboxylic acids. 
B) alkyl halides. 
C) esters. 
D) ethers. 
E) ketones.

Question 13

Which substance is not reactive with respect to alkanes?

Accepted Answer

A) H2 
B) Cl2 
C) O2 
D) Br2 
E) none of the above 
A) H2 
B) Cl2 
C) O2 
D) Br2 
E) none of the above

Question 14

Which of the following is an isomer of the molecule shown below?

Accepted Answer

A) CH3CH2CH3 
B) CH3CH(CH3)CH2CH3 
C) CH3CH2CH2CH2CH3 
D) CH3CH2CH2CH2CH2CH3 
A) CH3CH2CH3 
B) CH3CH(CH3)CH2CH3 
C) CH3CH2CH2CH2CH3 
D) CH3CH2CH2CH2CH2CH3

Question 15

Which atom is least likely to form a polar covalent bond with carbon?

Accepted Answer

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

Question 16

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 17

Which of the statements about the behavior of the element carbon in organic molecules is incorrect?

Accepted Answer

A) Carbon can be involved in polar covalent bonds. 
B) Carbon can form single,double,or triple bonds with other carbon atoms. 
C) Carbon always forms four bonds. 
D) When carbon forms four single bonds,the bond angles are 90°. 
E) In addition to other carbon atoms,carbon is likely to form bonds with hydrogen,nitrogen,or oxygen. 
A) Carbon can be involved in polar covalent bonds. 
B) Carbon can form single,double,or triple bonds with other carbon atoms. 
C) Carbon always forms four bonds. 
D) When carbon forms four single bonds,the bond angles are 90°. 
E) In addition to other carbon atoms,carbon is likely to form bonds with hydrogen,nitrogen,or oxygen.

Question 18

The functional group which illustrates an ester is ________.

Accepted Answer

A) RC≡CR' 
B) RCNH2 
C) 
  
D) 
  
E) 
  
A) RC≡CR' 
B) RCNH2 
C) 
  
D) 
  
E)

Question 19

What is the IUPAC name of the compound shown?

Accepted Answer

A) 2-methyl-2-propylbutane 
B) 2-ethyl-2-methylpentane 
C) 2,2-ethyl-methylpentane 
D) 3,3-dimethylhexane 
E) isooctane 
A) 2-methyl-2-propylbutane 
B) 2-ethyl-2-methylpentane 
C) 2,2-ethyl-methylpentane 
D) 3,3-dimethylhexane 
E) isooctane

Question 20

The functional group illustrated below is an

Accepted Answer

A) alkyl. 
B) alcohol. 
C) ether. 
D) ester. 
E) aldehyde. 
A) alkyl. 
B) alcohol. 
C) ether. 
D) ester. 
E) aldehyde.

Exam 12: Introduction to Organic Chemistry: Alkanes

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

What is the IUPAC name of the compound shown?

Match the name of the functional group with the molecule which correctly illustrates it. -aldehyde

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.

What is the IUPAC name of the compound shown?

The functional group illustrated by ROR' is an

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

The condensed structure of 2,4-dimethylhexane is ________.

Which of the following is a correct line structure for the following molecule?

Which molecule is an isomer of the molecule shown?

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

All of the families below include functional groups which contain oxygen except

Which substance is not reactive with respect to alkanes?

Which of the following is an isomer of the molecule shown below?

Which atom is least likely to form a polar covalent bond with carbon?

Which is not a property of most alkanes?

Which of the statements about the behavior of the element carbon in organic molecules is incorrect?

The functional group which illustrates an ester is ________.

What is the IUPAC name of the compound shown?

The functional group illustrated below is an

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

Amines

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Amino Acids and Proteins

Enzymes and Vitamins

The Generation of Biochemical Energy

Carbohydrates

Carbohydrate Metabolism

Lipids

Lipid Metabolism

Nucleic Acids and Protein Synthesis

Genomics

Protein and Amino Acid Metabolism

Chemical Messengers: Hormones, neurotransmitters, and Drugs

Body Fluids

Filters

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.

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