Question

Quantum efficiency of pgotochemical reaction of H2 and cl2 is high while that of H2 and Br2 is very low why

Answer 1

Answer:

Because due H2 has low pressure than Cl2 then H2 reacts with Br2 to give H2Br2+2H+ ions but Cl2 can't react with Br2 because Cl2 is a acid but Br2 is a base.H2 can react with Br2 because H2 reacts with O2 to from H20+e- and it becomes a universal solvent.