Which of the following analytical statements accurately reflect the advanced stereochemical rules go — Isomerism and Stereochemistry Chemistry Question

💡 Solution & Explanation

Cumulenes are explicitly defined by adjacent $\pi$ bonds. Odd-cumulenes (like systems with 3 $\pi$ bonds) maintain their terminal groups perfectly within the same geometric plane, establishing the necessary conditions for Cis/Trans GI. Even-cumulenes (like systems with 2 $\pi$ bonds) have structurally perpendicular terminal ends, destroying molecular symmetry and rendering the molecule chiral (optically active). The adjacent $\pi$ bonds rigorously prevent any free rotation.