Examine the twelve structural formulas shown at the bottom of this page, and select those that satisfy each of the following conditions. Enter one or more letters ( A through L ) in each answer box, reflecting your choice for each.
Do not enter superfluous characters, since they will be counted as incorrect answers.
A![]() |
B![]() |
C![]() |
D![]() |
E![]() |
F![]() |
G![]() |
H![]() |
I![]() |
J![]() |
K![]() |
L![]() |