Mixing bleach with Comet cleanser creates which hazardous substance?

Mixing bleach with Comet cleanser, which often contains abrasives and other cleaning agents, can produce hazardous chlorine gas. Chlorine gas is created due to a chemical reaction involving the sodium hypochlorite in bleach and certain other components in Comet. This reaction can occur particularly when Comet contains surfactants or other oxidizers. Chlorine gas is a toxic substance that can cause respiratory issues and other health hazards upon exposure.

Ammonia, sulfuric acid gas, and hydrogen peroxide do not result from this particular mixture. Thus, the correct identification of chlorine gas as the hazardous substance emphasizes the importance of understanding chemical reactions and the safe handling of cleaning products.