Name:
Organic Chemistry Practice Test
____
____
____
____
____
____
____
____
____
____
____
____
____
1. How many covalent bonds can each carbon atom form?
Draw these functional groups:
a. 1
c. 3
b. 2
d. 4
1. methyl
2. How many double covalent bonds are in an alkane?
a. 0
c. 2
b. 1
d. 3
3. Alkanes are hydrocarbons that contain what type of bonds?
a. single covalent bonds only
c. at least one triple bond
2. ethyl
b. at least one double bond
d. ionic bonds
4. How many carbons are in a molecule of hexane?
a. 3
c. 5
b. 4
d. 6
5. What is the name of the alkane having five carbons?
3. propyl
a. propane
c. octane
b. methane
d. pentane
6. The names of the straight-chain alkanes all end with the suffix ____.
a. -ene
c. -ane
b. -ine
d. -ino
7. Why are the molecules of hydrocarbons nonpolar?
4. butyl
a. The intermolecular attractions are strong.
b. All the bonds are single covalent bonds.
c. The electron pair is shared almost equally in all the bonds.
d. Van der Waals forces overcome polarity.
8. Which of the following compounds is an unsaturated hydrocarbon?
a. methane
c. nonane
b. propyne
d. methyl
9. The general name for hydrocarbons with at least one triple covalent bond is ____.
a. alkenes
c. alkanes
b. alkyls
d. alkynes
10. Which of these compounds is an alkene?
a. methane
c. butyne
b. nonene
d. propanone
11. 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
12. Hydrocarbons containing a saturated carbon ring are called ____.
a. cyclic hydrocarbons
c. aliphatic hydrocarbons
b. aromatic hydrocarbons
d. alkylated hydrocarbons
13. What do all organic compounds contain?
a. hydrogen
c. oxygen
b. water
d. carbon
Draw a straight chain of pentane and attach an ethyl group to the second carbon, and a methyl group to the third carbon.
Draw a straight chain of butane and attach a propyl group to the third carbon.
__________14. Write the general formula for an alkane.
Give the prefix for an organic compound with this number of
carbon atoms:
__________15. Write the general formula for an alkene.
________1 ________3 _________5 ________7 __________9
__________16. Write the general formula for an alkyne.
________2 ________4 _________6 ________8 _________10
__________17. What is the group that attaches to an organic compound that classifies it an alcohol?
___________18. Hydrocarbons that have the maximum number of hydrogens are (saturated/unsaturated).
__________19. What is the prefix attached to an organic compound to indicate that it is cyclic?
__________20. Give the symbols of the halogens which are substituted for hydrogen in hydrocarbons and have these
prefixes: iodo, bromo, chloro, fluoro.
Name of compound
Draw the structure.
ethanol
decane
hexene
cyclobutane
iodoheptane
octyne
- C – C – C – C - OH
-C–C–C–C–C–C-I
-C – C – C – C – C – C – C = C
C
C–C
Add hydrogens to
these to make a
correct structure .
Name the
structure.