Which of the following compounds is(are) E configuration(s)?
A) I
B) II
C) III
D) I + II
E) II + III

Question

Which of the following compounds is(are) E configuration(s)? 
A) I 
B) II 
C) III 
D) I + II 
E) II + III

Quizplus · Accepted Answer

Compound III has two high priority groups on opposite sides of the double bond, indicating it has an E configuration. Compounds I and II both have two high priority groups on the same side of the double bond, indicating they have a Z configuration. Therefore, choices A, B, D, and E are incorrect.

Which of the Following Compounds Is(are) E Configuration(s)