Abstract
From the result of reduction of nitro compound by use of N-3 catalyst in the preceeding report it can be explained that the rate equation is first order for nitro compound and zero order for hydrogen. In the case of using N-103 catalyst, with difference from N-3 catalyst, the reduction of nitrobenzene to aniline was disturbed by the intermediates and the rate equation derived from the consideration that the intermediate was removed by aniline was able to explainthe expermental results. The reductions of various compouds which are consideredas the intermedi ate compounds, have been carried out, and from there it can beassumed that the intermediate to disturb these reduction is nitrosobenzene .
