Chemistry 1506 Summer 2005 Exam 1
Youngstown State University
Department of Chemistry
Name:_____________________
Student #:__________________
Chemistry 1506
Exam 1
25 Questions, 4 points each – Clearly circle your choice of answer on each question
1. What is the correct IUPAC name for the following compound?
Cl
Cl
(a) 1,2-dichlorocyclohexane (b) chlorocyclohexane
(c) 1,3-dichlorohexane
(d) 1,3-dichlorocyclohexane
2. Which structure corresponds to the name 2-bromo-4-methylheptane?
(a)
(c)
CH 3
Br
(b)
CH 3 CHCH 2CHCH 2CH 2 CH 3
Cl
CH 3
(d)
CH 3 CHCH 2 CHCH 2 CH 2CH 3
CH 3
Br
CH 3CH 2 CH 2 CHCH 2 CHCH 3
Br CH 3
CH 3CH 2 CHCHCH 2CH 2CH 3
3. How many O2 molecules are required to balance the complete oxidation of pentane as shown below?
CH 3 CH 2 CH 2CH 2CH 3
(a) 8
+
(b) 4
CO 2
O2
(c) 6
+
H 2O
(d) 12
4. Which German chemist made urea from purely inorganic materials, thus changing the history of
Organic Chemistry?
(a) Gerhard Schroeder
(b) Frederick the Great
(c) Michael Schumacher
(d) Frederick Wöhler
5. How many carbon atoms are there in a molecule of 2,7-dimethyl-2-octene?
(a) 9
(b) 10
(c) 8
(d) 12
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Chemistry 1506 Summer 2005 Exam 1
6. How many constitutional isomers are possible for the compound whose formula is C5H12, one of
which is shown below?
(a) 1
(b) 2
(c) 3
(d) 4
7. Combustion of hydrocarbons requires which other chemical to be present?
(a) bromine
(b) oxygen
(c) water
(d) sodium
8. Which structure is incorrect?
CH 3
CH 3
(b)
CH 3
(a)
CH
CH 3 CH 2 CH
CH 2CH 3
H
(c)
CH 3CH 2 C CH 3
CH 3
CH 3
CH 3
(d)
CH 3 CHCH 2
CH 3
CH 3
C CH 3
CH 3
9. What name is given to the most stable conformation of cyclohexane?
(a) boat
(b) table
(c) chair
(d) sink
10. Which of the following is the product formed when ethane and bromine are heated together?
(a)
CH 2 =CH 2
(b)
CH 3 CH 2 Br
(c)
CH 3 CH 2CH 3
(d)
CH 3 CH 2 OH
11. What is the correct IUPAC name of the following molecule?
CH 3 CH 2
H
(a) trans-4-chloro-3-methyl-3-butene
Cl
(b) cis-1-chloro-2-methyl-1-butene
C C
CH 3
(c) cis-4-chloro-3-methyl-3-butene
(d) trans-1-chloro-2-methyl-1-butene
12. What is the molecular formula of 1,2-diethylcyclohexene?
(a) C10H18
(b) C8H16
(c) C8H18
(d) C10H20
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Chemistry 1506 Summer 2005 Exam 1
13. What would be the name of the hydrocarbon resulting from the addition of H2 (over Pt as catalyst) to
the following olefin?
CH 2CH 3
CH 3 CH 2 CH 2C=CH 2
(a) 4-ethylpentane
+
H2
(b) 3-methylhexane
(c) 2-ethylpentane
(d) 4-methylhexane
14. What is the IUPAC name of the following olefin?
(a) 1,4-dichlorocyclohexene
Br
(b) 1,3-dibromocycoheptene
Br
(c) 2,4-dibromocyclohexane
(d) 1,3-dibromocyclohexene
15. Which of the following molecules corresponds to 4-chloroaniline?
NH 2
NH 2
(b)
(a)
Cl
Cl
OH
NH 2
(d)
(c)
Cl
Cl
16. Which of the products below is the major product from the addition reaction shown?
CH 3CH 2CH CH 2
+
?
HCl
(a)
CH 3 CH 2CH 2 CH 2Cl
(c)
CH 3 CH 2CHCH 3
(b)
OH
CH 3 CH 2CHCH 3
Cl
(d)
CH 3 CH 2CH 2CH 2OH
17. Which property below is not a typical property of organic compounds?
(a) soluble in water
(b) insoluble in water
(c) flammable
(d) covalent bonding
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Chemistry 1506 Summer 2005 Exam 1
18. What is the correct IUPAC name of the molecule below?
(a) 2-chloro-4-hexyne
Cl
CH 3 CHCH 2 C CCH 3
(b) 2-bromo-4-hexene
(c) 5-chloro-2-hexyne
(d) 6-chloro-3-heptyne
19. Which structure below corresponds to 1-chloro-3-methylcyclohexane?
(a)
Cl
CH
CH 3
(b)
CH 2 CH 2
CH
CH CH 3
(d)
CH 3
CH 2
CH 2
CH 2
CH
CH 2
CH
CH 2
CH 2 CH 2
CH 3CH 2
CH
CH
CH 2
CH 2 CH 2
(c)
Cl
CH Cl
CH 2
CH 2
CH 2 CH 2
Cl
20. Which of the following formulas corresponds to cis-3-octene?
(b)
(a)
CH 3CH 2
CH 2CH 2CH 3
CH 3 CH 2CH 2
C C
H
H
C C
H
H
CH 2CH 2CH 3
(d)
(c)
CH 3CH 2CH 2 CH 2
CH 3 CH 2
CH 2CH 3
C C
H
H
C C
H
H
CH 2CH 2CH 2CH 3
21. What is the name of the product formed in the following reaction of benzene?
HNO 3
NO 2
H 2SO 4
(a) benzene
(b) phenol
(c) nitrobenzene
(d) toluene
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Chemistry 1506 Summer 2005 Exam 1
22. Which of the following represents the most stable conformation of hexane?
(a)
(b)
(c)
(d)
23. What is the correct name given to the arrangement of the bonds around the carbon atom in CH4?
(a) square planar
(b) tetrahedral
(c) linear
(d) trigonal planar
24. Which of the following molecules corresponds to cis-1-bromo-3-ethylcyclohexane?
(a)
Br
Br
(b)
CH 2CH 3
(c)
Br
CH 2 CH 3
CH 2CH 3
(d)
Br
CH 2CH 3
25. Which famous Russian came up with a rule for how reagents add to alkenes?
(a) Boris Yeltsin
(b) Dmitri Markovnikoff
(c) Maria Sharapova
(d) Alexander Zaitsev
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