Consider some facts about decomposition of H_(2)O_(2). It is catalysed by iodide ion in acidic medium. It is second order reaction with respect to both H_(2)O_(2).andI^(-1). Rate equation of this particular reaction will be Rate=(-d[H_(2)O_(2)]^(2))/(dt)=k[H_(2)O_(2)]^(2)[I^-] It completes in two steps and both steps are unimolecular elementary reactions. Which of the above written facts are correct, regarding decomposition of H_(2)O_(2)? Choose the correct option.

Consider some facts about decomposition of H_(2)O_(2). It is catalyse

1.	Consider some facts about decomposition of H_(2)O_(2). It is catalysed by iodide ion in acidic medium. It is second order reaction with respect to both H_(2)O_(2).andI^(-1). Rate equation of this particular reaction will be Rate=(-d[H_(2)O_(2)]^(2))/(dt)=k[H_(2)O_(2)]^(2)[I^-] It completes in two steps and both steps are unimolecular elementary reactions. Which of the above written facts are correct, regarding decomposition of H_(2)O_(2)? Choose the correct option.
Answer» I and II II and III III and IV I and Iv Solution :Decomposition of `H_(2)O_(2)` `2H_(2)O_(2)overset(1^(-))underset("Alkaline medium")rarr2H_(2)O+O_(2)` Rate EQUATION is rate `(-d[H_(2)O_(2)])/(dt)=K[H_(2)O_(2)][1^(-)]` This reaction is first order w.r.t. both `H_(2)O_(2) and 1^(-).` It MAKES place in two steps and both are bimolecular elementary reactions.