Final answer:
The two toxic gases produced from the decomposition of Halon gas are Phosgene and hydrogen fluoride.
Step-by-step explanation:
The two toxic gases produced from the decomposition of Halon gas are Phosgene and hydrogen fluoride. When Halon gas is exposed to extremely high temperatures, it undergoes a chemical reaction that results in the formation of these two toxic gases. Phosgene is a highly toxic gas that was used as a chemical weapon during World War I, while hydrogen fluoride is a corrosive gas that can cause severe burns and damage to tissues.