In the standard IUPAC nomenclature of binary covalent compounds composed of two non-metals, the less — Periodic Table and Periodicity Chemistry Question

💡 Solution & Explanation

In $ICl$, Iodine is less electronegative than Chlorine, so it should be named Iodine monochloride. In $Cl_2O$, Chlorine (3.0) is less electronegative than Oxygen (3.5), so it is named Dichlorine monoxide. $BrF_3$ and $OF_2$ correctly place the less electronegative element first.