Question

What is the relationship between the following two structures? \begin{center} \includegraphics{139.png} \end{center}

• A. \( \text{Tautomers} \)
• B. \( \text{Stereoisomers} \)
• C. \( \text{Resonance structures} \)
• D. \( \text{Constitutional isomers, but not tautomers} \)

Hint:

Resonance structures help visualize electron delocalization, contributing to molecular stability and reactivity.

Answer 1

The Correct Option is C

The given structures represent resonance forms, meaning they are different representations of the same molecule showing electron delocalization. Resonance does not imply actual isomerism but rather illustrates how electrons can be redistributed within a molecule without altering atomic connectivity. Unlike tautomers or constitutional isomers, resonance structures exist as a weighted hybrid, stabilizing the molecule.