Answer: The nonpolar covalent bond happens in an O₂ molecule.
Explanation: Nonpolar bonds happen where there's no difference between the polarity of the atoms involved. This usually happens when the same atoms bond to each other, which explains why the O₂ molecule is the one who has this bond.
A chemical bond formed when electrons are equally shared between atoms is a non-polar covalent bond. Oxygen contains a nonpolar covalent bond.
When the alike atoms of the molecules are bonded together the contrast between the polarity of the atoms is not involved. In the case of the oxygen molecule, the two atoms are of oxygen and form non-polar bonds.
Other molecules like carbon monoxide contain one carbon and one oxygen atom, sodium chloride contains one sodium and one chlorine atom and hydrogen fluoride contain one hydrogen and one fluorine atom.
Therefore, option A. [tex]\rm O_{2}[/tex] contains a nonpolar covalent bond.
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