Sodium hydroxide is commonly referred to as?

Sodium hydroxide is commonly known as caustic soda due to its strong alkaline properties and corrosive nature. This name directly reflects its ability to cause chemical burns and its use in various industrial applications, such as manufacturing soap, paper, and chemicals. The term "caustic" signifies its capacity to corrode or burn organic tissue, while "soda" relates to its sodium content. Understanding this terminology is crucial because it highlights the compound's potential hazards and its utility in different processes. The other options refer to different substances that do not share the same chemical identity or properties as sodium hydroxide.