Question

In each of the following sets, which structures represent the same compoundand which represent different compounds?

(b)

Short answer

(b) The first two structures in the given compounds is same and the third structure is different.

Step-by-step solution

Isomers

Different kinds of isomers include structural isomers and stereo isomers. Structural isomers are also termed constitutional isomers. The atoms and functional groups of this particular molecule are connected in different ways.

Identifying the structures representing the same compound

(b) The structures one and two in the compound are same and are named as pyrocatechol. The third structure is resourcinol. The structures are shown below.

Structures of compound (b)