( A ) Br2 reacts with hot and strong NaOH solution to give NaBr,NaBrO4 and H2O
( B ) Ozone reacts with SO2 to give SO3
( C ) Silicon reacts with NaOH(aq) in the presence of air to give Na2SiO3 and H2O
( D ) Cl2 reacts with excess of NH3 to give N2 and HCl