Consider the decomposition of hydrogen peroxide in alkaline medium which is catalyzed by iodide cons . $2H_2O_2 \qquad \underrightarrow{-OH} \qquad 2H_2O+O_3$ This reaction takes place in two steps as given below Step I:$H_2O_2+I^{-} \to H_2O+I_0^{-}$ (slow) Step II:$H_2O_2+IO^{-} \to H_2O+I^{-}+O_2$ (fast) a) Write the rate law expression and determine the order of reaction w.r.t $H_2O_2$ b) What is the molecularity of each individual step ?

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