Determine the exact Degree of Unsaturation for a heavily substituted tetra-halide organic compound w — Isomerism and Stereochemistry Chemistry Question

💡 Solution & Explanation

Using the DU formula $DU = (C + 1) - \frac{H + X - N}{2}$. Here $C = 2$, $H = 0$, $X = 4$ (one F, one Cl, one Br, one I). Substituting these into the formula: $DU = (2 + 1) - \frac{0 + 4 - 0}{2} = 3 - 2 = 1$. The compound has exactly one pi bond or ring (likely a double bond between the two carbons, as in a substituted ethene).