What is the relationship between the members of following pairs of structures? Are they structural or geometrical isomers or resonance contributors? following pairs of structures? Are they structural or geometrical isomers or resonance contributors?
What is the relationship between the members of following pairs of structures? Are they structural or geometrical isomers or resonance contributors? following pairs of structures? Are they structural or geometrical isomers or resonance contributors?

Solution:

The given mixtures are a pair of primary isomers since they have a similar molecular formula yet have various structures. These mixtures vary in the situation of the ketone bunch. For the primary structure, it is in C-3 while, for the second one, it is in C-2.