H,SO4. three different isomers (molecular formula CeH,Br,NO,) are obtained. ldentify the starting compound and its nitroderivatives. 11. Suggest a mechanism for cach of the following reactions: (a) O O NO2 NaOH NO2 N,C BF? NOg A (b) NO2 Hint: (a) Ph-N=NC19 OH PhN=NLOn Ph +N=N + OlH: nitrobenzene then reacts with Ph to give the product (a radical substitution).