Statement I: A fractional-order reaction must be a complex reaction. Statement II: Fractional order — Chemical Kinetics Chemistry Question

💡 Solution & Explanation

Statement I is correct because elementary reactions can only have integer molecularity and hence integer orders. Statement II is incorrect because the overall order of a complex reaction is derived from the rate-determining step and any prior fast equilibrium steps, not just simply equal to a simple fractional order of that step.