The compound that results from the formation of an ionic bond is C) NaCl.
NaCl (sodium chloride) is formed when sodium (Na) transfers an electron to chlorine (Cl), resulting in the formation of positively charged sodium ions (Na⁺) and negatively charged chloride ions (Cl⁻), which are held together by electrostatic forces.
In contrast, H₂O, NO₂, and CO₂ are molecular compounds that are formed by covalent bonds, where electrons are shared between atoms.