Consider the decomposition of hydrogen peroxide in alkaline medium which is catalysed by iodide ions : 2" H"_(2)"O"_(2)overset("OH"^(-))to2" H"_(2)"O"+"O"_(2) This reaction takes place in two steps as given below : Step-I. "H"_(2)"O"_(2)+I^(-)to"H"_(2)"O"+" IO"^(-)("slow") Step-II."H"_(2)"O"_(2)+"IO"^(-)to"H"_(2)"O"+I^(-)+"O"_(2)("fast") (a) Write the rate law expression and determine the order of reaction w.r.t. "H"_(2)"O"_(2). (b) What is the molecularity of each individual step ?

Consider the decomposition of hydrogen peroxide in alkaline medium whi

1.	Consider the decomposition of hydrogen peroxide in alkaline medium which is catalysed by iodide ions : 2" H"_(2)"O"_(2)overset("OH"^(-))to2" H"_(2)"O"+"O"_(2) This reaction takes place in two steps as given below : Step-I. "H"_(2)"O"_(2)+I^(-)to"H"_(2)"O"+" IO"^(-)("slow") Step-II."H"_(2)"O"_(2)+"IO"^(-)to"H"_(2)"O"+I^(-)+"O"_(2)("fast") (a) Write the rate law expression and determine the order of reaction w.r.t. "H"_(2)"O"_(2). (b) What is the molecularity of each individual step ?
Answer» ANSWER :(a) Rate `=K[H_(2)O_(2)][I^(-)]," ORDER w.r.t. "H_(2)O_(2)=1." (b)MOLECULARITY : Step-1"=2, "Step-II = 2."`