What is the chemical formula for sodium hypochlorite commonly used as bleach?

Sodium hypochlorite, commonly used as a disinfectant and bleach, has the chemical formula NaClO. This formula indicates that it is composed of one sodium ion (Na+), one chloride ion (Cl-), and one oxygen atom (O). Sodium hypochlorite is well-known for its bleaching and sanitizing properties, making it widely utilized in water treatment and household cleaning products.

The other choices represent different compounds that do not have the same chemical structure or properties as sodium hypochlorite. For instance, calcium hypochlorite (represented in one of the alternatives) is a compound that contains calcium rather than sodium. Sodium chloride and potassium chloride are simply salts and do not have the same disinfecting or bleaching capabilities as sodium hypochlorite. Understanding the specific chemical formulation helps in identifying the unique applications and functionalities of these compounds in various settings.