Talk:A-level Chemistry/OCR (Salters)/Reactions of arenes

In the reduction of nitrobenzene to aniline, Stannous chloride is shown as a catalyst. Actually, in this reaction Stannous chloride is a reagent and not a catalyst. The tin is activlty reduced to Tin(IV) and Tin(II) is not regenerated. Further, it is often used in excess molar equivalents. This should be changed to reflect such.