The reaction mechanism proposed for the decomposition of H2O2 is
H2O2 + I-1 -> H2O + IO-1 (slow)
H2O2 + IO-1 -> H2O + O2 + I-1 (fast)
Which statement is true?
1) The reaction is second order in I-1.
2) I-1 is an intermediate.
3) The reaction is first order in I-1 and first order in H2O2.
4) IO-1 is a catalyst.
5) The reaction is zero order in I-1.