A cyclic voltammogram of p-aminophenol in \(0.01 \mathrm{M} \mathrm{H}_{2} \mathrm{SO}_{4}\) was recorded with a carbon paste electrode scanning from \(0 \mathrm{~V}\) in the positive direction. The processes associated with each of the three current peaks are indicated on the voltammogram. Describe simple experiments that would help you confirm or refute the proposed products shown for each peak. (Source: Adapted with permission from H. A. Strobel and W. R. Heinemann 1988 [2])

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NH +2e+ 2H+ 16 NH OH + 2e + 2H 0.8 0.4 0.0 E in volts versus SCE NH2 NH OH + 2e + 2H+ HO OH OH + NH