Which of the following statements accurately compare the molecularity and the order of a reaction? — Reaction Mechanism Chemistry Question

💡 Solution & Explanation

Molecularity represents the theoretical number of molecules colliding in a single elementary step and must be a positive integer. Net molecularity for a complex reaction has no physical meaning. Order is strictly an experimental value derived from the rate law, representing the sum of concentration powers, and it can be zero, fractional, or negative.