WAEC - Chemistry (2001 - No. 5)
Which of the following compounds is covalent?
CaCI2
MgO
NaN
CH4
Explication
A covalent compound is a molecule that is formed when two or more different atoms are connected with a covalent bond. Covalent compounds are basically the molecules that form when two different atoms form a covalent bond. They typically have similar electronegativity and are non-metals. Only Option D has two non-metals.