Identify the pair of compounds.
A)identical
B)conformational isomers
C)constitutional isomers
D)configurational isomers
E)none of the above

Question

Identify the pair of compounds. 
A)identical 
B)conformational isomers 
C)constitutional isomers 
D)configurational isomers 
E)none of the above

Quizplus · Accepted Answer

Constitutional isomers have the same molecular formula but different connectivity of atoms. Without any knowledge of the compounds, it is impossible to determine if they have different conformations or configurations, so B and D can be ruled out. Option A would be true if the compounds had the same connectivity and same orientation in space, but we cannot assume that without more information. Therefore, the best choice is C.

Identify the Pair of Compounds