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Semester: fall 2011

Practice to Chapter 12 (Alkenes & Alkynes

*1.
Consider the following:

CH3CH2CH=CHCH2CH3
CH3CH2CH2CH2CH=CH2
I
II

CH3CH=CHCH2CH2CH3
CH2=CHCH2CH2CH2CH3
III
IV

Which two structures represent the same compound?
A)
I and II
B)
II and III
C)
I and III
D)
II and IV
E)
None of these

*2.
Give the IUPAC name for

A)
3-Methyl-4-hexyne
B)
4-Methyl-2-hexyne
C)
2-Ethyl-3-pentyne
D)
4-Ethyl-2-pentyne
E)
3-Methyl-2-hexyne

3. What is the IUPAC name for this compound?

A. cis-1-ethyl-2-methylethene

B. trans-2-pentene

C. 1-methyl-butene

D. trans-methylbutene

E. cis-2-pentene

*4.
A correct IUPAC name for the following compound is:

A)
3,6,7-trimethyl-4-bromo-1-octene
B)
4-bromo-3-methyl-6-isopropyl-1-heptene
C)
4-bromo-3,6,7-trimethyl-1-octene
D)
4-bromo-6-isopropyl-3-methyl-1-heptene
E)
4-bromo-6-isopropyl-3,6-dimethyl-1-hexene

*5.
Which alkene would yield 3-methylpentane when subjected to catalytic hydrogenation? A)

B)

C)

D)

E)

*61.​What product is formed on reaction of hydrogen chloride with 1-pentene? ​1. 1-Chloropentane​4. 1-Chloro-1-pentene
​2. 2-Chloropentane​5. 2-Chloro-1-pentene
​3. 1,2-Dichloropentane

*7. Sandwich bags is typically made of:
a. high density Polyethylene
b. Polystyrene
c. Polyvinylchloride
d. Low density polyethylene

8. What is the IUPAC name for this compound?

A. 2-bromo-3-methyl-1-pentene

B. 2-bromo-3-methyl-3-pentene

C. 2-bromo-1-ethyl-2-butene

D. 3-bromo-2-ethyl-1-butene

E. 3-bromo-2,2-dimethyl-1-butene

9. Assign an IUPAC name to the unsaturated hydrocarbon shown below.

A. methyl-3-cyclohexene

B. 4-methyl-1-cyclohexene

C. 3-methylcyclohexene

D. 1-methyl-3-cyclohexene

E. 4-methylcyclohexene

10. When water reacts with the compound, CH3-CH=CH2 , what will be the major product?

A.

B.

C.

D.

E.

11. Assign an IUPAC name to the following compound.

A. 3-hexylbenzene

B. 3-benzylhexane

C. 3-phenylhexane

D. 3-aromohexane

E. 3-benzenehexane

12. Which of the following when exposed to chlorine will produce 2,3-dichloropentane? A) cis-2-Pentene
B) Pentane
C) 1-Pentyne
D) Cyclopentane
E) 1,2-Dichlorohexane

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