Chemistry · Chemical Kinetics

Match the reaction profiles describing intermediates in List-I with their corresponding kinetic features in List-II: List-I (P) Stable intermediate formed in a multi-step reaction (Q) Fast initial step forming a transient intermediate followed by a slow rate-determining step (R) A two-step reaction with a highly unstable intermediate that is difficult to detect kinetically (S) A sequential mechanism involving measurable accumulation of an intermediate List-II (1) The intermediate behaves almost like the final product kinetically (2) Reactants rapidly reach equilibrium with an intermediate, which slowly transforms into products (3) The presence of the intermediate is difficult to determine kinetically although the two-step reaction is not ultra-fast (4) The intermediate accumulates in measurable quantities and the reaction is easily resolved into two distinct steps (5) Mechanism involves ultra-fast steps where no intermediate can be isolated