complete the following reactions:
a. `overset (C_(6)H_(6) + MeCOCI) underset (Benzene (A))` `overset (AICI_(3)) rarr` B `overset (HNO_(3)) underset H_(2)SO_(4)) rarr` C `overset (NaBH_(4)) rarr` D `overset (H_(2)SO_(4)) underset (Delta) rarr` E
b. (B) `overset (NaBH_(4)) rarr` F `overset (H_(2)SO_(4)) underset (Delta) rarr` G `overset (HNO_(3)) underset (H_(2)SO_(4)) rarr` H
