Chem 212
Quiz 2i
NAME__________________________________
Alkanes: Structure, Nomenclature, Properties (20 pts)
1.
(4 pts) Underneath the structure, write the name of the following:
H3C
H3C
H3C
CH3
CH3
CH3
Br
2. (4 pts) Describe the relationship between each of the following pairs of structures as one of the
following: identical, cis-trans isomers, constitutional isomers, or different compounds.
CH3(CH2)3CH(CH3)CH2C(CH3)3
and
Please turn over - continued on reverse
and
3. (4 pts) Draw line-angle formulas (i.e. structures similar to those shown for problem 1 above) for
the following. Your answer must be a line angle formula to receive credit!
a. 1-ethylcyclopentane
b. trans-1,3-diisopropylcyclohexane
4. (4 pts) Circle the answer that gives the proper order of boiling points, from highest to lowest:
a. heptane > octane > 2,2,3-trimethylbutane > 2,4-dimethylpentane > 2-methylhexane
b. 2,2,3-trimethylbutane > 2,4-dimethylpentane > 2-methylhexane > heptane > octane
c. 2,2,3-trimethylbutane > 2,4-dimethylpentane > 2-methylhexane > octane > heptane
d. octane > heptane > 2-methylhexane> 2,4-dimethylpentane > 2,2,3-trimethylbutane
e. octane > heptane > 2,2,3-trimethylbutane > 2,4-dimethylpentane > 2-methylhexane
5. (4 pts) Give a short explanation for your answer to the multiple choice question above.