Liberation of oxygen when green cells in water are exposed to sunlight in presence of suitable acceptor is

Liberation of O_2 when green cells in water are exposed to sunlight in the presence of suitable acceptor is called

What do you observe when : Chlorine water is exposed to sunlight.

When chlorine water is exposed to sunlight, O_(2) is liberated. Hence

What do you observe when Hydrogen peroxide is exposed to sunlight.

What do you observe when Silver chloride is exposed to sunlight.

What changes do you observe when silver bromide exposed to sunlight?