Which of the following is an acceptable structure for (2E,4E)-octa-2,4-dien-6-yne?
A)I
B)II
C)III
D)IV

Question

Which of the following is an acceptable structure for (2E,4E)-octa-2,4-dien-6-yne? 
A)I 
B)II 
C)III 
D)IV

Quizplus · Accepted Answer

The correct structure of (2E,4E)-octa-2,4-dien-6-yne is a diene-yne compound, meaning it contains both a diene (two double bonds separated by one single bond) and a alkyne (a triple bond). Therefore, the structure should have both of these functional groups present. Choice D is the only option that satisfies this requirement. Choices A, B, C, and E do not have both a diene and an alkyne present.

Which of the Following Is an Acceptable Structure for (2E,4E)-Octa-2,4-Dien-6-Yne