What happens when ammonia is mixed with bleach?

Mixing ammonia with bleach is highly dangerous because it leads to the formation of toxic chloramines. Chloramines are a group of chemicals that can cause severe respiratory problems and other health hazards. When ammonia and bleach interact, the reaction results in the release of chloramine vapors, which can irritate the eyes, skin, and respiratory tract.

In the context of why the other options aren't correct:

• While ammonia gas is already a substance in the mix, the focus here is on the dangerous products formed in the reaction rather than any additional ammonia that might be released.

• The idea that it creates a strong disinfectant is misleading because the toxic compounds produced pose serious health risks, overshadowing any potential cleaning benefits.

• Stating that there is no noticeable effect disregards the harmful consequences that arise from this chemical reaction.

Hence, the correct answer highlights the serious risks associated with mixing these two substances, notably the production of toxic chloramines.