I and II are:
A)constitutional isomers.
B)enantiomers.
C)identical.
D)diastereomers.
E)not isomeric.

Question

I and II are: 
A)constitutional isomers. 
B)enantiomers. 
C)identical. 
D)diastereomers. 
E)not isomeric.

Quizplus · Accepted Answer

Since I and II are not mirror images of each other nor do they differ only in their absolute configuration at one or more stereogenic centers, they cannot be enantiomers. Since they have the same connectivity but differ in the spatial arrangement of their atoms, they are definitely not identical, constitutional isomers or not isomeric. Therefore, they must be diastereomers.

I and II Are