Which compound contains only nonpolar covalent bonds?
o2
co2
h2o
no3

O2 because the electronegativity of both oxygen atoms is the same, so there's no degree of unequal electron sharing since both molecules attract them equally

I believe the correct answer from the choices listed above is the first option. O2 is the compound that contains only nonpolar covalent bonds. It is nonpolar since it does not have unequal distribution of charges. Hope this answers the question. Have a nice day.

Bis the