What is the Degree of Unsaturation (DU) of Benzene ()? — Isomerism and Stereochemistry Chemistry Question

💡 Solution & Explanation

The molecular formula of Benzene is $C_6H_6$. Using the formula $DU = (C + 1) - H/2$, we get $DU = (6 + 1) - 6/2 = 7 - 3 = 4$. Structurally, Benzene consists of 1 ring and 3 alternating $\pi$ bonds, summing to a total Double Bond Equivalent of $1 + 3 = 4$.