MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical ChemistryChemical kineticsSome Important First Order Reactions
Consider some facts about decomposition of H2O2. I.It is catalyzed by iodide ion in acidic or alkaline medium. II.It is second order reaction with respect to both H2O2 and I- III.Rate equation of this particular reaction will be Rate d H O k H O I dt IV.It completes in two steps and both steps are unimolecular elementary reactions. Which of the above written facts are correct, regarding decomposition of H2O2? Choose the correct option.
A.I, II and III
B.I, II, III and IV
C.I, III, and IV
D.None of these✓ Correct
Explanation
Decomposition of H2O2 I 2 2 2 2 Alkalinemedia 2H O 2H O O -> Rate equation is rate 2 2 2 2 d H O k H O I dt This reaction is first order w.r.t both H2O2 and I-. It takes place in two steps and both are bimolecular elementary reactions.
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