What is the exact ratio of the total number of (sigma) bonds to (pi) bonds in one molecule of toluen — Hydrocarbons Chemistry Question

💡 Solution & Explanation

Toluene 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. Ratio = $15:3 = 5:1$.