X-ray diffraction analysis of benzene reveals that all six carbon-carbon bonds are identical. What i — Aromatic Hydrocarbons Chemistry Question

💡 Solution & Explanation

The $C-C$ bond length in benzene is exactly $1.39 \text{ \AA}$, which is intermediate between a standard $C-C$ single bond ($1.54 \text{ \AA}$) and a standard $C=C$ double bond ($1.34 \text{ \AA}$), indicating complete $\pi$ -electron delocalization.