Methyl iodide reacts irreversibly with azide ion with rate = k[CH31][N3-]. CH31(aq) + N3(aq) → CH3N3(aq) + I-(aq) The reaction is carried out with an initial concentration of CH I of 0.01 M. Which statement about the reaction is correct? (A) The time it takes for [CH3I] to decrease to 0.005 M is independent of [N3-], as long as [N3] >> [CH3I].
(B) If the initial concentrations of azide and CH3I are equal, then it takes half as long for [CH3I] to decrease to 0.005 M as it does for it to decrease from 0.005 M to 0.0025 M.
(C) The reaction rate is significantly smaller if excess I- is added to the solution.
(D) The reaction cannot take place in a single elementary step.