See image — GOC and Organic Chemistry Basics Chemistry Question

💡 Solution & Explanation

# Resonance Energy - Correct Statement **Understanding Resonance Energy:** Resonance energy is the **difference between the actual energy of a molecule and the energy of its most stable contributing resonance structure**. $$\text{Resonance Energy} = E_{\text{hypothetical single structure}} - E_{\text{actual molecule}}$$ **Why (C) is Correct:** Since the actual molecule is a hybrid of multiple resonance structures, it is **more stable** than any individual contributing structure would be. The resonance energy quantifies this extra stabilization. **Evaluating Other Options:** - **(A) Stored by the molecule** — ✗ Not stored; it's a stabilization benefit - **(B) Released by the molecule** — ✗ Not released; energy is already part of the molecular structure - **(D) Sometimes stored/sometimes released** — ✗ Inconsistent; always contributes to stabilization - **(C) Energy by which system gets stabilised** — ✓ **Correct** — Resonance energy directly measures the stabilization gain from resonance **Example:** Benzene has resonance energy of ~150 kJ/mol, making it far more stable than a hypothetical non-resonant structure with alternating single and double bonds.