Name: ANSWER KEY
Date: __________________
Period: _________
Organic Chemistry Review Sheet
I.
Introduction to Organic Chemistry
1. Which of the following compounds is formed by covalent bonding?
a) Na2S
b) AlCl3
c) C6H12O6
d) LiH
2. Which of the following molecules contains a nonpolar covalent bond?
a) H2O
b) HF
c) F2
d) NH3
3. Which of the following molecules is polar? (Circle all that apply.)
a) H2O
b) HF
c) F2
d) NH3
4. Which of the following molecules has the strongest London dispersion force
attractions?
a) CH4
b) C2H6
c) C3H8
d) C4H10
5. Which of the following nonpolar molecules has the lowest boiling point?
a) CH4
b) C2H6
c) C3H8
d) C4H10
6. Which of the following substances is organic?
a) NaCl
b) NH3
c) CH4
d) H2O
7. Which of the following substances is insoluble in water?
a) NaCl
b) NH3
c) CH4
d) H2O
8. When 2 carbon atoms form a double bond, how many pairs of e- will be shared
between them? TWO
9. An organic compound is heated in the presence of oxygen. If a high enough
temperature is reached, what chemical reaction will take place?
COMBUSTION
10. An alkane has 5 carbon atoms. How many hydrogen atoms will it have? 12
11. An alkene has 3 carbon atoms. How many hydrogen atoms will it have 4
12. An alkyne has 4 carbon atoms. How many hydrogen atoms will it have? 8
II.
Naming & Drawing Simple Organic Molecules
A) Name the following compounds:
butane
heptane
ethane
2-hexene
propene
1-hexene
7. C2H6 ethane Homologous Series: ALKANE
8. C3H4 propyne Homologous Series: ALKYNE
9. C4H8 butene Homologous Series: ALKENE
B) Draw the following compounds. Then, draw and name one isomer of the compound.
Butane
Isomer of Butane 2-methylpropane
1-Butyne
Isomer of 1-Butyne 2-butyne
Pentane
Isomer of Pentane 2-methylbutane
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III. Naming & Drawing Substituted Hydrocarbons
A) Name the following compounds:
2,2-dichlorobutane
1-chloropropane
1,2-difluoroethane
1,1-difluoroethane
2-methylpentane
2,5-dimethylheptane
B) Draw the following compounds.
2 chloro propane
1,2 dichloro butane
1,4 dichloro pentane
3 methyl heptane
2,2 dimethyl octane
3,4-dichloro-1,3-hexadiene
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IV.
Organic Chemical Reactions
1. Which of the following reactions is an addition reaction?
a) C2H6 + Cl2 --> C2H5Cl + HCl
c) C2H4 + Cl2 --> C2H4Cl2
b) C2H6 + Cl2 --> C2H5Cl + HCl
d) C3H8 + HBr --> C3H7Br + H2
2. Which of the following hydrocarbons can undergo an addition reaction?
a) C3H8
b) C4H8
c) C5H12
d) CH4
3. Which of the following products can form when propene reacts with diatomic chlorine?
a) C3H8Cl2
b) C3H7Cl2
c) C3H6Cl2
d) C3H8Cl
4. Complete the following reactions and indicate whether they are addition or
substitution reactions. Give the name of the organic reactants and products, only.
a)
SUBSTITUTION: ethane + bromine  bromoethane + hydrogen bromide
b)
ADDITION: propene + bromine  1,2-dibromopropane
c)
SUBSTITUTION: ethane + hydrogen bromide  bromoethane + hydrogen
d)
ADDITION: propene + hydrogen bromide  bromoethane
5. State what kind of reaction can form the following products and identify the reactants
that are needed to make those products.
a) 1 fluoro butane
Type of reaction: Substitution
Reactants needed: Butane + Fluorine
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b) 1,2 dichloro butane
Type of reaction: Addition
Reactants needed: Butene + Chlorine
V.
Functional Groups
A) Draw the structures of the following organic compounds and indicate if the functional group is
attached to a primary or secondary carbon.
Name
Functional Group
Structural Formula
Ketone
2-pentanone
Organic Acid
Propanoic acid
Amine
Ethanamine
Amide
Butanamide
Methyl ethanoate
Ester
Ether
Methyl propyl ether
2- pentanol
BE SPECIFIC!
Monohydroxy,
Secondary Alcohol
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1-pentanol
B)
BE SPECIFIC!
Monohydroxy,
Primary Alcohol
Which of the following molecules is an isomer of propanol?
a) propanone
b) methyl ethyl ether
c) propanal
d) propanoic acid
***NOTE*** Don’t forget to review the organic reactions “Let’s Practice” handout on page 33, as well as the
videos on fractional distillation and cracking on Ms. Roman’s website.
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