1
Homework 2
Name _____________________________
1. Give the name for each of the following structures:
2. Draw the line-angle structure for each of the following compounds:

Name Line-angle Structure
3-chloro-2 methylpentane
3-ethyl-2,5-dimethylhexane
2-chloro-1,4-dimethylcyclohexane
cis-1,3-dibromocyclopentane
trans-1,2-dimethylcyclobutane

Cl
Br Br
(a)
(b)
(c)
(d)
Br CH3
F
F

2
3. For the following pairs of compounds, circle the compound that has the higher boiling point.
Provide an explanation of your choice.
a) CH
3-CH2-CH2-CH3 vs. CH3-CH(CH3)-CH3
b) propane vs. octane
c)
4. Write and balance the combustion reaction for each of the following alkanes:
a) pentane
b) cyclobutene
5. Write the structures for the monohalogenated products for each of the following reactions and
circle the major product:
a) CH
3-CH2-CH3 + Br2 ®
b) methylcyclobutane + Br2 ®
6. Circle the most stable chair conformation of 1-bromocyclohexane.
vs
Br
Br

3
7. In the following sets, indicate whether the pairs of structural formulas are constitutional
isomers, conformational isomers, identical or neither. Provide the molecular formula for each
compound.
8. Convert the following condensed structural formulas to line-angle formulas.
(a)
(b)
(CH3)4C (c) CH3CC(CH2)2CH(CH3)2
(a) and
(b)
(c)
NH2
and
NH2
OH
and HO
(d)
OH and
OH
CH3CH2CHCHCH2CH2CH3
CH(CH3)2
CH2CH3

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