When utilizing the generalized formula for calculating the Double Bond Equivalent, which of the foll — Isomerism and Stereochemistry Chemistry Question

💡 Solution & Explanation

When computing DU, monovalent halogens (F, Cl, Br, I) replace hydrogens, so their count ($X$) is added. Trivalent nitrogen family elements require an extra hydrogen to satisfy their valency, so their count ($N$) is subtracted. Divalent oxygen family elements insert between bonds without changing the hydrogen count, so they are ignored. The formula uses $(C + 1)$, it does not multiply Carbon by 2.