In organic chemistry, which of the following specific molecular frameworks fundamentally possess a R — Isomerism and Stereochemistry Chemistry Question

💡 Solution & Explanation

Alkenes and imines possess pi ($\pi$) bonds that completely restrict rotation along the inter-nuclear axis. Cycloalkanes possess a rigid ring framework that similarly restricts free rotation of the single bonds forming the ring. Alkynes are inherently linear ($180^\circ$ bond angle); therefore, the spatial distances between any attached terminal groups cannot vary, rendering GI impossible.