Name: 
 

Organic Chemistry Practice Test


Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 
How many double covalent bonds are in an alkane?
a.
0
c.
2
b.
1
d.
3
 

 2. 
What is the name of the alkane having five carbons?
a.
propane
c.
octane
b.
methane
d.
pentane
 

 3. 
Which of the following is a condensed structural formula for propane?
a.
Cochempractice_files/i0040000.jpgHochempractice_files/i0040001.jpg
c.
CHochempractice_files/i0040002.jpgCHochempractice_files/i0040003.jpgCHochempractice_files/i0040004.jpg
b.
CHochempractice_files/i0040005.jpgCHochempractice_files/i0040006.jpgCHochempractice_files/i0040007.jpg
d.
CHochempractice_files/i0040008.jpgCHochempractice_files/i0040009.jpgCHochempractice_files/i0040010.jpgCHochempractice_files/i0040011.jpg
 

 4. 
The condensed structural formula for 2,2,3-trimethylbutane is ____.
a.
CHochempractice_files/i0050000.jpgCHochempractice_files/i0050001.jpg(CHochempractice_files/i0050002.jpg)CH(CHochempractice_files/i0050003.jpg)ochempractice_files/i0050004.jpg
c.
CHochempractice_files/i0050005.jpgC(CHochempractice_files/i0050006.jpg)ochempractice_files/i0050007.jpgCH(CHochempractice_files/i0050008.jpg)ochempractice_files/i0050009.jpg
b.
CHochempractice_files/i0050010.jpgC(CHochempractice_files/i0050011.jpg)ochempractice_files/i0050012.jpgC(CHochempractice_files/i0050013.jpg)ochempractice_files/i0050014.jpg
d.
CHochempractice_files/i0050015.jpgCHochempractice_files/i0050016.jpgCH(CHochempractice_files/i0050017.jpg)C(CHochempractice_files/i0050018.jpg)ochempractice_files/i0050019.jpg
 

 5. 
Which of the following compounds is an unsaturated hydrocarbon?
a.
methane
c.
nonane
b.
propyne
d.
methyl
 

 6. 
A saturated straight-chain hydrocarbon with two carbons is ____.
a.
ethene
c.
propane
b.
decane
d.
ethane
 

 7. 
Which of these compounds is an alkene?
a.
methane
c.
butyne
b.
nonene
d.
propanone
 

 8. 
An organic compound that contains only carbon and hydrogen and at least one carbon-carbon triple bond is classified as an ____.
a.
alkane
c.
alkyne
b.
alkene
d.
arene
 

 9. 
What compound is the simplest aromatic compound?
a.
methane
c.
ethyne
b.
ethene
d.
benzene
 

 10. 
Which of the following is NOT an important fossil fuel?
a.
petroleum
c.
natural gas
b.
hydrogen
d.
coal
 

 11. 
What is the first step in the refining of petroleum?
a.
cracking
c.
cooling
b.
drilling
d.
distillation
 

 12. 
Which of the following is NOT a fraction obtained from crude oil?
a.
ammonia
c.
gasoline
b.
natural gas
d.
kerosene
 

 13. 
Which of the following is NOT a product obtained from the distillation of coal tar?
a.
benzene
c.
coke
b.
phenol
d.
toluene
 

 14. 
What is the name of the functional group in the following compound?
ochempractice_files/i0150000.jpg
a.
halogen
c.
carbonyl
b.
ester
d.
carboxylic acid
 

 15. 
Which of the following compounds is a secondary alcohol?
a.

CHochempractice_files/i0160000.jpg¾CHochempractice_files/i0160001.jpg¾CHochempractice_files/i0160002.jpg¾CHochempractice_files/i0160003.jpgOH
c.

ochempractice_files/i0160004.jpg
b.

ochempractice_files/i0160005.jpg
d.

none of the above
 

 16. 
What type of compound is CHochempractice_files/i0170000.jpg¾O¾CHochempractice_files/i0170001.jpg¾CHochempractice_files/i0170002.jpg¾CHochempractice_files/i0170003.jpg?
a.
alcohol
c.
ether
b.
aldehyde
d.
ketone
 

 17. 
Name the compound CHochempractice_files/i0180000.jpgCHochempractice_files/i0180001.jpgO CHochempractice_files/i0180002.jpgCHochempractice_files/i0180003.jpgCHochempractice_files/i0180004.jpg.
a.
diethyl ether
c.
ethylpropyl ether
b.
dipropyl ether
d.
pentane oxide
 

 18. 
Which carbon skeleton represents an ether?
a.

C¾C¾C¾O¾C¾C¾C
c.

ochempractice_files/i0190000.jpg
b.

ochempractice_files/i0190001.jpg
d.

none of the above
 

 19. 
What is the name of the following compound?
ochempractice_files/i0200000.jpg
a.
2-butanone
c.
4-butanone
b.
2-pentanone
d.
4-pentanone
 

 20. 
Which carbon skeleton represents an aldehyde?
a.

ochempractice_files/i0210000.jpg
c.

ochempractice_files/i0210001.jpg
b.

ochempractice_files/i0210002.jpg
d.

none of the above
 

 21. 
Esters contribute which property to fruits?
a.
odor
c.
texture
b.
color
d.
skin thickness
 

 22. 
Which of the following is the functional group in alcohols?
a.
–COOH
c.
–CO
b.
–OH
d.
–O–
 

 23. 
The name of a compound with the functional group –OH has the suffix
a.
–ol.
c.
oic acid.
b.
–al.
d.
one.
 
 
ochempractice_files/i0250000.jpg
 

 24. 
In the figure above, name the compound in diagram D.
a.
2-bromopropyne
c.
2-bromopropane
b.
2-bromopropene
d.
2,2-bromopropene
 

 25. 
In the figure above, name the compound in diagram B.
a.
1,3-butadiene
c.
2,3-butadiene
b.
1,4-butadiene
d.
1,3-butene
 

 26. 
In the figure above, name the compound in diagram A.
a.
ethane
c.
ethyne
b.
ethene
d.
ethadiene
 

 27. 
How many valence electrons does a carbon atom have?
a.
1
c.
3
b.
2
d.
4
 

 28. 
How many covalent bonds can each carbon atom form?
a.
1
c.
3
b.
2
d.
4
 

 29. 
What is the simplest alkane?
a.
butane
c.
methane
b.
ethane
d.
pentane
 

 30. 
How many carbons are in a molecule of hexane?
a.
3
c.
5
b.
4
d.
6
 

 31. 
Which of the following compounds is a structural isomer of butane?
a.
2-methylbutane
c.
2-methylpropane
b.
2,2-dimethylbutane
d.
2,2-diethylpropane
 

 32. 
What is the main hydrocarbon component of natural gas?
a.
benzene
c.
ethene
b.
ethane
d.
methane
 

 33. 
Which of the following compounds is trichloromethane?
a.

ochempractice_files/i0350000.jpg
c.

ochempractice_files/i0350001.jpg
b.

ochempractice_files/i0350002.jpg
d.

ochempractice_files/i0350003.jpg
 

 34. 
Phenols are characterized by ____.
a.
their behavior as gases
c.
an ¾OH group on a benzene ring
b.
ether linkages
d.
their use as flavoring agents
 

 35. 
What type of compound is the following?
ochempractice_files/i0370000.jpg
a.
alcohol
c.
ether
b.
aldehyde
d.
ketone
 



 
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