Analyze the (Elimination Unimolecular conjugate Base) mechanism. Within its defined rate-determining — Reaction Mechanism Chemistry Question

💡 Solution & Explanation

The $E1cB$ process consists of two primary steps. First, the base rapidly and reversibly removes a proton, forming a conjugate carbanion. Second, the carbanion subsequently expels the poor leaving group. This second step is the slow, rate-determining step. Because only the single carbanion species undergoes bond cleavage in this critical step, the molecularity of the rate-determining step is 1.