Final answer:
The two ingredients in bleach solution are 1) sodium hypochlorite and water, with sodium hypochlorite being the hazardous component due to its corrosive properties and potential to create toxic gases when mixed with certain other substances.
Step-by-step explanation:
The two ingredients in a typical bleach solution are sodium hypochlorite and water. Among the given options, the correct one is option 1), which lists sodium hypochlorite and water as the ingredients. Sodium hypochlorite is the component that endows bleach with its disinfecting and bleaching properties. However, it is also the hazardous ingredient because of its corrosive nature and its potential to form toxic fumes when improperly mixed with other household chemicals like acids or ammonia.
When using sodium hypochlorite-based products, it's essential to handle them safely. They should never be mixed with other cleaning agents, as this can release dangerous gases. For example, mixing bleach with acids can produce chlorine gas, and mixing it with ammonia generates chloramine gas, both of which can harm the respiratory system. Contact with skin or eyes can lead to irritation and potential burns. Using bleach in a well-ventilated area and wearing personal protective equipment are important safety measures.