What is the total number of (sigma) and (pi) bonds in one molecule of toluene? — Hydrocarbons Chemistry Question

💡 Solution & Explanation

Toluene ($C_6H_5CH_3$) has a benzene ring (6 C-C $\sigma$, 5 C-H $\sigma$) and a methyl group (1 C-C $\sigma$, 3 C-H $\sigma$). Total $\sigma$ = 15. The aromatic ring contains a delocalized system equivalent to 3 $\pi$ bonds.