The decomposition of hydrogen peroxide can proceed through the following two-step…

CHEMISTRY · Single correct · A Level · Chemistry · Kinetics · Kinetics

Problem

The decomposition of hydrogen peroxide can proceed through the following two-step pathway: Step 1:

\mathrm{Cl^- + H_2O_2 \rightarrow HOCl + OH^-}

Step 2:

\mathrm{HOCl + H_2O_2 \rightarrow Cl^- + H_2O + O_2}

Which species functions as a catalyst in this reaction mechanism? (a)

\mathrm{HOCl}

(b)

\mathrm{Cl^-}

(c)

\mathrm{OH^-}

(d)

\mathrm{H_2O_2}