Final answer:
The formula for boric acid is H₃BO₃. Boric acid is a weak acid that contains three hydroxyl groups (OH) and one boron atom (B). It is commonly used in medicine, industrial processes, and as an insecticide. The answer is option 4.
Step-by-step explanation:
The formula for boric acid is H₃BO₃.
Boric acid, also known as hydrogen borate, is a weak acid that contains three hydroxyl groups (OH) and one boron atom (B). The chemical formula H₃BO₃ represents the composition of boric acid, where the subscripts indicate the number of atoms of each element.
Boric acid is commonly used in various fields, such as medicine, industrial processes, and as an insecticide.
Hence, the correct answer is option 4.