Chem 212
Quiz 2a
p.1
NAME__________________________________
Alkanes: Isomers and Conformations (20 pts)
1. For each of the following pairs of structures, write whether they are identical, constitutional
isomers, or different molecules.
CH3
O
CH3
CH3
and
CH3
H3 C
CH3
H3C
O
CH3
OH
OH
H3C
and
CH3
O
O
H3 C
O
O
CH3
CH3
and
CH3
H3 C
and
CH3
H3C
CH3
H3 C
2. Underneath each structure, write the IUPAC names for each of the following:
H3C
CH3
H3C
CH3
H3C
CH3
3. Write line-angle formulas (i.e. structures similar to those shown for problems 1 & 2 above) for
the following alkanes and cycloalkanes. You may need to add wedges and/or dashes to the
structures.Your answer must be a line angle formula to receive credit!
a. trans-1,2-dimethylcyclopentane
b. 2,3-dimethylhexane
c. 4-isopropyldecane
d. cis-1,4-dibromocyclohexane