MDCAT Chemistry MCQ #5112

A reaction is found to have an order of 1.5 with respect to a reactant. What does this suggest about its mechanism?

MDCAT Chemistry MCQ #5112

  1. Question 1

    Q1. A reaction is found to have an order of 1.5 with respect to a reactant. What does this suggest about its mechanism?

    • A) The reaction is an elementary step
    • B) The reaction follows a complex multi-step mechanism
    • C) The reaction is zero order with respect to all reactants
    • D) The reaction is independent of temperature

    Answer: The reaction follows a complex multi-step mechanism

    Explanation: Fractional orders indicate complex mechanisms with multiple steps. Option A is wrong as elementary steps always have integer molecularity.