Nonmetal name + nonmetal name + suffix –ide is applicable for naming covalent compounds (option 2)
What are covalent compounds
Covalent compounds, also known as molecular compounds, are substances formed by the sharing of electrons between atoms.
In these compounds, non-metal atoms combine through the sharing of electron pairs to achieve a stable configuration, typically following the octet rule (having eight electrons in their outermost shell, except for hydrogen and helium, which follow the duet rule).
Various nomenclature systems exist for naming acids, organic compounds, and simple covalent compounds. The convention of using "nonmetal name + nonmetal name + suffix –ide" applies specifically to naming covalent compounds.
Complete question:
Which of these rules are applicable for naming covalent compounds?
1.metal name + nonmetal name + suffix –ide
2.nonmetal name + nonmetal name + suffix –ide
3.metal name + nonmetal name + suffix –ite
4.nonmetal name + nonmetal name + suffix –ite