What is the chemical formula for iodoform?

Iodoform, a haloform compound, is characterized by its specific chemical structure which consists of a central carbon atom bonded to three iodine atoms and one hydrogen atom. The chemical formula for iodoform encapsulates this structure as CHI3, indicating one carbon (C), one hydrogen (H), and three iodine (I) atoms.

This unique combination gives iodoform its distinct properties, such as its use in antiseptics and its recognition by the characteristic yellow appearance. In contrast, the other options consist of different halogens or combinations that do not accurately reflect the composition of iodoform. For instance, CCl3 contains three chlorine atoms, which defines a different compound entirely. Similarly, CHF3 and CBr3 contain fluorine and bromine, respectively, instead of iodine. Thus, the correct representation of iodoform as CHI3 stands out among the choices provided.