Which statement describes the bonds in carbon dioxide ( NO3 − )?
A Carbon and oxygen have an electronegativity difference of 0.5, so the bond is ionic, with oxygen pulling the electrons toward it.
B Carbon and oxygen have an electronegativity difference of 0.5, so the bond is nonpolar covalent, with oxygen pulling the electrons toward it.
C Carbon and oxygen have an electronegativity difference of 0.5, so the bond is polar covalent, with oxygen pulling the electrons toward it.
D Carbon and oxygen have an electronegativity difference of 1.0, so the bond is polar covalent, with oxygen pulling the electrons toward it.