Determine the total number of sigma () electrons present in a single molecule of toluene. — GOC and Organic Chemistry Basics Chemistry Question

💡 Solution & Explanation

Toluene ($C_6H_5CH_3$) contains a total of 15 atoms in a monocyclic framework. The total number of sigma bonds = atoms - 1 + rings = $15 - 1 + 1 = 15 \sigma$ bonds. Since every sigma bond consists of exactly 2 shared electrons, the total number of sigma electrons is $15 \times 2 = 30$.