The following homogeneous gaseous reactions were experimentally found to be second
Channel: Doubtnut
Date: 2021-11-02

The following homogeneous gaseous reactions were experimentally found to be second order overall (i) `2NO_(2) rarr N_(2)+O_(2)`(ii) `3O_(2)rarr 2O_(3)`  (iii) `N_(2)O_(3) rarr  NO + NO_(2)` (iv) `H_(2) + I_(2) rarr 2HI` Which of these are most likely to be elementary reaction that occur in one step ?